64989364 has 12 divisors (see below), whose sum is σ = 124070688. Its totient is φ = 29540600.

The previous prime is 64989347. The next prime is 64989371. The reversal of 64989364 is 46398946.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 738472 + ... + 738559.

It is an arithmetic number, because the mean of its divisors is an integer number (10339224).

Almost surely, 2^64989364 is an apocalyptic number.

It is an amenable number.

64989364 is a deficient number, since it is larger than the sum of its proper divisors (59081324).

64989364 is a wasteful number, since it uses less digits than its factorization.

64989364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1477046 (or 1477044 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 49.

The square root of 64989364 is about 8061.5981045944. The cubic root of 64989364 is about 402.0506441810.

The spelling of 64989364 in words is "sixty-four million, nine hundred eighty-nine thousand, three hundred sixty-four".