64276064 has 24 divisors (see below), whose sum is σ = 130908960. Its totient is φ = 31029376.

The previous prime is 64276049. The next prime is 64276073. The reversal of 64276064 is 46067246.

It is a happy number.

It is a congruent number.

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, 33704 + ... + 35559.

It is an arithmetic number, because the mean of its divisors is an integer number (5454540).

Almost surely, 2^64276064 is an apocalyptic number.

It is an amenable number.

64276064 is an abundant number, since it is smaller than the sum of its proper divisors (66632896).

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

64276064 is a wasteful number, since it uses less digits than its factorization.

64276064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69302 (or 69294 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 64276064 is about 8017.2354337390. The cubic root of 64276064 is about 400.5743083635.

The spelling of 64276064 in words is "sixty-four million, two hundred seventy-six thousand, sixty-four".