64608985 has 16 divisors (see below), whose sum is σ = 88742016. Its totient is φ = 44235648.

The previous prime is 64608979. The next prime is 64609009. The reversal of 64608985 is 58980646.

It is a cyclic number.

It is not a de Polignac number, because 64608985 - 2²⁵ = 31054553 is a prime.

It is a Duffinian number.

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 15 ways as a sum of consecutive naturals, for example, 35262 + ... + 37048.

It is an arithmetic number, because the mean of its divisors is an integer number (5546376).

Almost surely, 2^64608985 is an apocalyptic number.

It is an amenable number.

64608985 is a deficient number, since it is larger than the sum of its proper divisors (24133031).

64608985 is a wasteful number, since it uses less digits than its factorization.

64608985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2832.

The product of its (nonzero) digits is 414720, while the sum is 46.

The square root of 64608985 is about 8037.9714480707. The cubic root of 64608985 is about 401.2647157706.

The spelling of 64608985 in words is "sixty-four million, six hundred eight thousand, nine hundred eighty-five".