64609708 has 18 divisors (see below), whose sum is σ = 114988748. Its totient is φ = 31757880.

The previous prime is 64609697. The next prime is 64609711. The reversal of 64609708 is 80790646.

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 5 ways as a sum of consecutive naturals, for example, 131343 + ... + 131833.

Almost surely, 2^64609708 is an apocalyptic number.

It is an amenable number.

64609708 is a deficient number, since it is larger than the sum of its proper divisors (50379040).

64609708 is an equidigital number, since it uses as much as digits as its factorization.

64609708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1053 (or 560 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 64609708 is about 8038.0164219787. The cubic root of 64609708 is about 401.2662125351.

The spelling of 64609708 in words is "sixty-four million, six hundred nine thousand, seven hundred eight".