64974665 has 8 divisors (see below), whose sum is σ = 89108160. Its totient is φ = 44554032.

The previous prime is 64974647. The next prime is 64974671. The reversal of 64974665 is 56647946.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64974665 - 2⁶ = 64974601 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 928175 + ... + 928244.

It is an arithmetic number, because the mean of its divisors is an integer number (11138520).

Almost surely, 2^64974665 is an apocalyptic number.

It is an amenable number.

64974665 is a deficient number, since it is larger than the sum of its proper divisors (24133495).

64974665 is a wasteful number, since it uses less digits than its factorization.

64974665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1856431.

The product of its digits is 1088640, while the sum is 47.

The square root of 64974665 is about 8060.6863851660. The cubic root of 64974665 is about 402.0203305642.

The spelling of 64974665 in words is "sixty-four million, nine hundred seventy-four thousand, six hundred sixty-five".