64683717 has 16 divisors (see below), whose sum is σ = 101965440. Its totient is φ = 35687232.

The previous prime is 64683709. The next prime is 64683727. The reversal of 64683717 is 71738646.

It is not a de Polignac number, because 64683717 - 2³ = 64683709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64683727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52498 + ... + 53715.

It is an arithmetic number, because the mean of its divisors is an integer number (6372840).

Almost surely, 2^64683717 is an apocalyptic number.

It is an amenable number.

64683717 is a deficient number, since it is larger than the sum of its proper divisors (37281723).

64683717 is a wasteful number, since it uses less digits than its factorization.

64683717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106252.

The product of its digits is 169344, while the sum is 42.

The square root of 64683717 is about 8042.6187899216. The cubic root of 64683717 is about 401.4193679460.

The spelling of 64683717 in words is "sixty-four million, six hundred eighty-three thousand, seven hundred seventeen".