3842396689 has 4 divisors (see below), whose sum is σ = 3882009124. Its totient is φ = 3802784256.

The previous prime is 3842396681. The next prime is 3842396699. The reversal of 3842396689 is 9866932483.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1482866064 + 2359530625 = 38508^2 + 48575^2 .

It is a cyclic number.

It is not a de Polignac number, because 3842396689 - 2³ = 3842396681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3842396681) 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, 19806072 + ... + 19806265.

It is an arithmetic number, because the mean of its divisors is an integer number (970502281).

Almost surely, 2^3842396689 is an apocalyptic number.

It is an amenable number.

3842396689 is a deficient number, since it is larger than the sum of its proper divisors (39612435).

3842396689 is an equidigital number, since it uses as much as digits as its factorization.

3842396689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39612434.

The product of its digits is 13436928, while the sum is 58.

The square root of 3842396689 is about 61987.0687240492. The cubic root of 3842396689 is about 1566.2727776082.

The spelling of 3842396689 in words is "three billion, eight hundred forty-two million, three hundred ninety-six thousand, six hundred eighty-nine".