3912479369 has 4 divisors (see below), whose sum is σ = 3913431060. Its totient is φ = 3911527680.

The previous prime is 3912479357. The next prime is 3912479401. The reversal of 3912479369 is 9639742193.

It is a happy number.

3912479369 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9639742193 = 43 ⋅224180051.

It can be written as a sum of positive squares in 2 ways, for example, as 1559065225 + 2353414144 = 39485^2 + 48512^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3912479369 is a prime.

It is a super-2 number, since 2×3912479369² = 30614989625701276322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3912479369.

It is not an unprimeable number, because it can be changed into a prime (3912479969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 469652 + ... + 477909.

It is an arithmetic number, because the mean of its divisors is an integer number (978357765).

Almost surely, 2^3912479369 is an apocalyptic number.

It is an amenable number.

3912479369 is a deficient number, since it is larger than the sum of its proper divisors (951691).

3912479369 is an equidigital number, since it uses as much as digits as its factorization.

3912479369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 951690.

The product of its digits is 2204496, while the sum is 53.

The square root of 3912479369 is about 62549.8150996468. The cubic root of 3912479369 is about 1575.7380424770.

The spelling of 3912479369 in words is "three billion, nine hundred twelve million, four hundred seventy-nine thousand, three hundred sixty-nine".