3888904656 has 80 divisors (see below), whose sum is σ = 12364736384. Its totient is φ = 1025644032.

The previous prime is 3888904633. The next prime is 3888904687. The reversal of 3888904656 is 6564098883.

It is a junction number, because it is equal to n+sod(n) for n = 3888904596 and 3888904605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 440791 + ... + 449526.

Almost surely, 2^3888904656 is an apocalyptic number.

It is an amenable number.

3888904656 is an abundant number, since it is smaller than the sum of its proper divisors (8475831728).

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

3888904656 is a wasteful number, since it uses less digits than its factorization.

3888904656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890348 (or 890342 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 57.

The square root of 3888904656 is about 62361.0828642351. The cubic root of 3888904656 is about 1572.5667853714.

The spelling of 3888904656 in words is "three billion, eight hundred eighty-eight million, nine hundred four thousand, six hundred fifty-six".