3920521984 has 18 divisors (see below), whose sum is σ = 7825729940. Its totient is φ = 1960260864.

The previous prime is 3920521937. The next prime is 3920522057. The reversal of 3920521984 is 4891250293.

It is a self number, because there is not a number n which added to its sum of digits gives 3920521984.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7657014 + ... + 7657525.

Almost surely, 2^3920521984 is an apocalyptic number.

It is an amenable number.

3920521984 is a deficient number, since it is larger than the sum of its proper divisors (3905207956).

3920521984 is an equidigital number, since it uses as much as digits as its factorization.

3920521984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15314555 (or 15314541 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 3920521984 is about 62614.0717730448. The cubic root of 3920521984 is about 1576.8170156308.

The spelling of 3920521984 in words is "three billion, nine hundred twenty million, five hundred twenty-one thousand, nine hundred eighty-four".