64988982 has 12 divisors (see below), whose sum is σ = 140809500. Its totient is φ = 21662988.

The previous prime is 64988981. The next prime is 64988999. The reversal of 64988982 is 28988946.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64988981) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1805232 + ... + 1805267.

It is an arithmetic number, because the mean of its divisors is an integer number (11734125).

Almost surely, 2^64988982 is an apocalyptic number.

64988982 is an abundant number, since it is smaller than the sum of its proper divisors (75820518).

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

64988982 is a wasteful number, since it uses less digits than its factorization.

64988982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3610507 (or 3610504 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 54.

The square root of 64988982 is about 8061.5744119868. The cubic root of 64988982 is about 402.0498564437.

The spelling of 64988982 in words is "sixty-four million, nine hundred eighty-eight thousand, nine hundred eighty-two".