64972048 has 20 divisors (see below), whose sum is σ = 128563200. Its totient is φ = 31794464.

The previous prime is 64972031. The next prime is 64972067. The reversal of 64972048 is 84027946.

It is a self number, because there is not a number n which added to its sum of digits gives 64972048.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42448 + ... + 43951.

It is an arithmetic number, because the mean of its divisors is an integer number (6428160).

Almost surely, 2^64972048 is an apocalyptic number.

It is an amenable number.

64972048 is a deficient number, since it is larger than the sum of its proper divisors (63591152).

64972048 is a wasteful number, since it uses less digits than its factorization.

64972048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86454 (or 86448 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 64972048 is about 8060.5240524422. The cubic root of 64972048 is about 402.0149330690.

The spelling of 64972048 in words is "sixty-four million, nine hundred seventy-two thousand, forty-eight".