64623952 has 10 divisors (see below), whose sum is σ = 125208938. Its totient is φ = 32311968.

The previous prime is 64623943. The next prime is 64623967. The reversal of 64623952 is 25932646.

It can be written as a sum of positive squares in only one way, i.e., 64577296 + 46656 = 8036^2 + 216^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2019483 + ... + 2019514.

Almost surely, 2^64623952 is an apocalyptic number.

It is an amenable number.

64623952 is a deficient number, since it is larger than the sum of its proper divisors (60584986).

64623952 is a wasteful number, since it uses less digits than its factorization.

64623952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4039005 (or 4038999 counting only the distinct ones).

The product of its digits is 77760, while the sum is 37.

The square root of 64623952 is about 8038.9024126432. The cubic root of 64623952 is about 401.2956983825.

The spelling of 64623952 in words is "sixty-four million, six hundred twenty-three thousand, nine hundred fifty-two".