64866037 has 2 divisors, whose sum is σ = 64866038. Its totient is φ = 64866036.

The previous prime is 64866007. The next prime is 64866041. The reversal of 64866037 is 73066846.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41139396 + 23726641 = 6414^2 + 4871^2 .

It is a cyclic number.

It is not a de Polignac number, because 64866037 - 2¹⁵ = 64833269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64866007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32433018 + 32433019.

It is an arithmetic number, because the mean of its divisors is an integer number (32433019).

Almost surely, 2^64866037 is an apocalyptic number.

It is an amenable number.

64866037 is a deficient number, since it is larger than the sum of its proper divisors (1).

64866037 is an equidigital number, since it uses as much as digits as its factorization.

64866037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 64866037 is about 8053.9454306570. The cubic root of 64866037 is about 401.7961661454.

The spelling of 64866037 in words is "sixty-four million, eight hundred sixty-six thousand, thirty-seven".