64782788 has 24 divisors (see below), whose sum is σ = 132728064. Its totient is φ = 27086400.

The previous prime is 64782749. The next prime is 64782803. The reversal of 64782788 is 88728746.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27068 + ... + 29363.

It is an arithmetic number, because the mean of its divisors is an integer number (5530336).

Almost surely, 2^64782788 is an apocalyptic number.

It is an amenable number.

64782788 is an abundant number, since it is smaller than the sum of its proper divisors (67945276).

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

64782788 is a wasteful number, since it uses less digits than its factorization.

64782788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56483 (or 56481 counting only the distinct ones).

The product of its digits is 1204224, while the sum is 50.

The square root of 64782788 is about 8048.7755590524. The cubic root of 64782788 is about 401.6242043078.

The spelling of 64782788 in words is "sixty-four million, seven hundred eighty-two thousand, seven hundred eighty-eight".