3990962656 has 12 divisors (see below), whose sum is σ = 7857207792. Its totient is φ = 1995481312.

The previous prime is 3990962641. The next prime is 3990962707. The reversal of 3990962656 is 6562690993.

It is a super-3 number, since 3×3990962656³ (a number of 30 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3990962597 and 3990962606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62358760 + ... + 62358823.

It is an arithmetic number, because the mean of its divisors is an integer number (654767316).

Almost surely, 2^3990962656 is an apocalyptic number.

It is an amenable number.

3990962656 is a deficient number, since it is larger than the sum of its proper divisors (3866245136).

3990962656 is a wasteful number, since it uses less digits than its factorization.

3990962656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124717593 (or 124717585 counting only the distinct ones).

The product of its (nonzero) digits is 4723920, while the sum is 55.

The square root of 3990962656 is about 63174.0663247190. The cubic root of 3990962656 is about 1586.2046597169.

The spelling of 3990962656 in words is "three billion, nine hundred ninety million, nine hundred sixty-two thousand, six hundred fifty-six".