3928792656 has 40 divisors (see below), whose sum is σ = 10590661440. Its totient is φ = 1252658176.

The previous prime is 3928792601. The next prime is 3928792669. The reversal of 3928792656 is 6562978293.

It is a junction number, because it is equal to n+sod(n) for n = 3928792596 and 3928792605.

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, 1778241 + ... + 1780448.

It is an arithmetic number, because the mean of its divisors is an integer number (264766536).

Almost surely, 2^3928792656 is an apocalyptic number.

It is an amenable number.

3928792656 is an abundant number, since it is smaller than the sum of its proper divisors (6661868784).

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

3928792656 is a wasteful number, since it uses less digits than its factorization.

3928792656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3558723 (or 3558717 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 57.

The square root of 3928792656 is about 62680.0818123270. The cubic root of 3928792656 is about 1577.9250463578.

The spelling of 3928792656 in words is "three billion, nine hundred twenty-eight million, seven hundred ninety-two thousand, six hundred fifty-six".