3940097479 has 4 divisors (see below), whose sum is σ = 3945429880. Its totient is φ = 3934765080.

The previous prime is 3940097423. The next prime is 3940097527. The reversal of 3940097479 is 9747900493.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9747900493 = 31 ⋅314448403.

It is a cyclic number.

It is not a de Polignac number, because 3940097479 - 2⁹ = 3940096967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3943097479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2665092 + ... + 2666569.

It is an arithmetic number, because the mean of its divisors is an integer number (986357470).

Almost surely, 2^3940097479 is an apocalyptic number.

3940097479 is a deficient number, since it is larger than the sum of its proper divisors (5332401).

3940097479 is an equidigital number, since it uses as much as digits as its factorization.

3940097479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5332400.

The product of its (nonzero) digits is 1714608, while the sum is 52.

The square root of 3940097479 is about 62770.1957858983. The cubic root of 3940097479 is about 1579.4370529600.

The spelling of 3940097479 in words is "three billion, nine hundred forty million, ninety-seven thousand, four hundred seventy-nine".