64456968 has 32 divisors (see below), whose sum is σ = 169624800. Its totient is φ = 20354688.

The previous prime is 64456963. The next prime is 64456981. The reversal of 64456968 is 86965446.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (64456963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70221 + ... + 71132.

It is an arithmetic number, because the mean of its divisors is an integer number (5300775).

Almost surely, 2^64456968 is an apocalyptic number.

It is an amenable number.

64456968 is an abundant number, since it is smaller than the sum of its proper divisors (105167832).

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

64456968 is a wasteful number, since it uses less digits than its factorization.

64456968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141381 (or 141377 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 48.

The square root of 64456968 is about 8028.5096998135. The cubic root of 64456968 is about 400.9497597728.

The spelling of 64456968 in words is "sixty-four million, four hundred fifty-six thousand, nine hundred sixty-eight".