64915683 has 16 divisors (see below), whose sum is σ = 103220736. Its totient is φ = 35481600.

The previous prime is 64915679. The next prime is 64915687. The reversal of 64915683 is 38651946.

It is an interprime number because it is at equal distance from previous prime (64915679) and next prime (64915687).

It is not a de Polignac number, because 64915683 - 2² = 64915679 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64915687) 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, 66718 + ... + 67683.

It is an arithmetic number, because the mean of its divisors is an integer number (6451296).

Almost surely, 2^64915683 is an apocalyptic number.

64915683 is a deficient number, since it is larger than the sum of its proper divisors (38305053).

64915683 is a wasteful number, since it uses less digits than its factorization.

64915683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134434.

The product of its digits is 155520, while the sum is 42.

The square root of 64915683 is about 8057.0269330566. The cubic root of 64915683 is about 401.8986465112.

The spelling of 64915683 in words is "sixty-four million, nine hundred fifteen thousand, six hundred eighty-three".