64856376 has 80 divisors (see below), whose sum is σ = 195657000. Its totient is φ = 19953216.

The previous prime is 64856369. The next prime is 64856387. The reversal of 64856376 is 67365846.

64856376 is a `hidden beast` number, since 6 + 4 + 8 + 5 + 637 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4575 + ... + 12273.

Almost surely, 2^64856376 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64856376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97828500).

64856376 is an abundant number, since it is smaller than the sum of its proper divisors (130800624).

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

64856376 is a wasteful number, since it uses less digits than its factorization.

64856376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7730 (or 7717 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 64856376 is about 8053.3456401672. The cubic root of 64856376 is about 401.7762176193.

The spelling of 64856376 in words is "sixty-four million, eight hundred fifty-six thousand, three hundred seventy-six".