64523076 has 12 divisors (see below), whose sum is σ = 150553872. Its totient is φ = 21507688.

The previous prime is 64523071. The next prime is 64523087. The reversal of 64523076 is 67032546.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (64523071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2688450 + ... + 2688473.

It is an arithmetic number, because the mean of its divisors is an integer number (12546156).

Almost surely, 2^64523076 is an apocalyptic number.

It is an amenable number.

64523076 is an abundant number, since it is smaller than the sum of its proper divisors (86030796).

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

64523076 is a wasteful number, since it uses less digits than its factorization.

64523076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5376930 (or 5376928 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 64523076 is about 8032.6257226389. The cubic root of 64523076 is about 401.0867862317.

The spelling of 64523076 in words is "sixty-four million, five hundred twenty-three thousand, seventy-six".