64010992 has 20 divisors (see below), whose sum is σ = 126661536. Its totient is φ = 31324160.

The previous prime is 64010987. The next prime is 64010993. The reversal of 64010992 is 29901046.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64010993) 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, 41809 + ... + 43312.

Almost surely, 2^64010992 is an apocalyptic number.

It is an amenable number.

64010992 is a deficient number, since it is larger than the sum of its proper divisors (62650544).

64010992 is a wasteful number, since it uses less digits than its factorization.

64010992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85176 (or 85170 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 64010992 is about 8000.6869705045. The cubic root of 64010992 is about 400.0228986891.

The spelling of 64010992 in words is "sixty-four million, ten thousand, nine hundred ninety-two".