64368772 has 48 divisors (see below), whose sum is σ = 127171072. Its totient is φ = 28304640.

The previous prime is 64368769. The next prime is 64368779. The reversal of 64368772 is 27786346.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (64368779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117403 + ... + 117949.

Almost surely, 2^64368772 is an apocalyptic number.

64368772 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

64368772 is a deficient number, since it is larger than the sum of its proper divisors (62802300).

64368772 is a wasteful number, since it uses less digits than its factorization.

64368772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668 (or 666 counting only the distinct ones).

The product of its digits is 338688, while the sum is 43.

The square root of 64368772 is about 8023.0151439468. The cubic root of 64368772 is about 400.7668040894.

The spelling of 64368772 in words is "sixty-four million, three hundred sixty-eight thousand, seven hundred seventy-two".