64977932 has 24 divisors (see below), whose sum is σ = 116107152. Its totient is φ = 31809600.

The previous prime is 64977931. The next prime is 64977943. The reversal of 64977932 is 23977946.

It is not an unprimeable number, because it can be changed into a prime (64977931) 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, 68582 + ... + 69522.

It is an arithmetic number, because the mean of its divisors is an integer number (4837798).

Almost surely, 2^64977932 is an apocalyptic number.

It is an amenable number.

64977932 is a deficient number, since it is larger than the sum of its proper divisors (51129220).

64977932 is a wasteful number, since it uses less digits than its factorization.

64977932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1289 (or 1287 counting only the distinct ones).

The product of its digits is 571536, while the sum is 47.

The square root of 64977932 is about 8060.8890328549. The cubic root of 64977932 is about 402.0270684644.

The spelling of 64977932 in words is "sixty-four million, nine hundred seventy-seven thousand, nine hundred thirty-two".