64290937 has 2 divisors, whose sum is σ = 64290938. Its totient is φ = 64290936.

The previous prime is 64290929. The next prime is 64290953. The reversal of 64290937 is 73909246.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61136761 + 3154176 = 7819^2 + 1776^2 .

It is a cyclic number.

It is not a de Polignac number, because 64290937 - 2³ = 64290929 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64290937.

It is not a weakly prime, because it can be changed into another prime (64290917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32145468 + 32145469.

It is an arithmetic number, because the mean of its divisors is an integer number (32145469).

Almost surely, 2^64290937 is an apocalyptic number.

It is an amenable number.

64290937 is a deficient number, since it is larger than the sum of its proper divisors (1).

64290937 is an equidigital number, since it uses as much as digits as its factorization.

64290937 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 64290937 is about 8018.1629442161. The cubic root of 64290937 is about 400.6052026127.

The spelling of 64290937 in words is "sixty-four million, two hundred ninety thousand, nine hundred thirty-seven".