64972708 has 12 divisors (see below), whose sum is σ = 120390732. Its totient is φ = 30575360.

The previous prime is 64972679. The next prime is 64972711. The reversal of 64972708 is 80727946.

It can be written as a sum of positive squares in 2 ways, for example, as 45805824 + 19166884 = 6768^2 + 4378^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 477673 + ... + 477808.

It is an arithmetic number, because the mean of its divisors is an integer number (10032561).

Almost surely, 2^64972708 is an apocalyptic number.

64972708 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

64972708 is a deficient number, since it is larger than the sum of its proper divisors (55418024).

64972708 is a wasteful number, since it uses less digits than its factorization.

64972708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 955502 (or 955500 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 64972708 is about 8060.5649926044. The cubic root of 64972708 is about 402.0162943157.

The spelling of 64972708 in words is "sixty-four million, nine hundred seventy-two thousand, seven hundred eight".