3957892608 has 80 divisors (see below), whose sum is σ = 10701725760. Its totient is φ = 1299572736.

The previous prime is 3957892597. The next prime is 3957892639. The reversal of 3957892608 is 8062987593.

It is a super-2 number, since 2×3957892608² = 31329827792922083328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83683 + ... + 122141.

It is an arithmetic number, because the mean of its divisors is an integer number (133771572).

Almost surely, 2^3957892608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3957892608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5350862880).

3957892608 is an abundant number, since it is smaller than the sum of its proper divisors (6743833152).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3957892608 is an equidigital number, since it uses as much as digits as its factorization.

3957892608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38547 (or 38531 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 57.

The square root of 3957892608 is about 62911.7843333028. The cubic root of 3957892608 is about 1581.8112817581.

The spelling of 3957892608 in words is "three billion, nine hundred fifty-seven million, eight hundred ninety-two thousand, six hundred eight".