64978912 has 12 divisors (see below), whose sum is σ = 127927296. Its totient is φ = 32489440.

The previous prime is 64978909. The next prime is 64978931. The reversal of 64978912 is 21987946.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1015264 + ... + 1015327.

It is an arithmetic number, because the mean of its divisors is an integer number (10660608).

Almost surely, 2^64978912 is an apocalyptic number.

It is an amenable number.

64978912 is a deficient number, since it is larger than the sum of its proper divisors (62948384).

64978912 is a wasteful number, since it uses less digits than its factorization.

64978912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2030601 (or 2030593 counting only the distinct ones).

The product of its digits is 217728, while the sum is 46.

The square root of 64978912 is about 8060.9498199654. The cubic root of 64978912 is about 402.0290895841.

The spelling of 64978912 in words is "sixty-four million, nine hundred seventy-eight thousand, nine hundred twelve".