64980117 has 8 divisors (see below), whose sum is σ = 96266880. Its totient is φ = 43320060.

The previous prime is 64980089. The next prime is 64980131. The reversal of 64980117 is 71108946.

64980117 is a `hidden beast` number, since 649 + 8 + 0 + 1 + 1 + 7 = 666.

It is not a de Polignac number, because 64980117 - 2⁶ = 64980053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64980187) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1203309 + ... + 1203362.

It is an arithmetic number, because the mean of its divisors is an integer number (12033360).

Almost surely, 2^64980117 is an apocalyptic number.

It is an amenable number.

64980117 is a deficient number, since it is larger than the sum of its proper divisors (31286763).

64980117 is a wasteful number, since it uses less digits than its factorization.

64980117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2406680 (or 2406674 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 64980117 is about 8061.0245626719. The cubic root of 64980117 is about 402.0315747086.

The spelling of 64980117 in words is "sixty-four million, nine hundred eighty thousand, one hundred seventeen".