64733788 has 12 divisors (see below), whose sum is σ = 129467632. Its totient is φ = 27743040.

The previous prime is 64733783. The next prime is 64733813. The reversal of 64733788 is 88733746.

64733788 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64733783) 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, 1155933 + ... + 1155988.

Almost surely, 2^64733788 is an apocalyptic number.

It is an amenable number.

64733788 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

64733788 is a wasteful number, since it uses less digits than its factorization.

64733788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2311932 (or 2311930 counting only the distinct ones).

The product of its digits is 677376, while the sum is 46.

The square root of 64733788 is about 8045.7310419874. The cubic root of 64733788 is about 401.5229194325.

The spelling of 64733788 in words is "sixty-four million, seven hundred thirty-three thousand, seven hundred eighty-eight".