864437013 has 12 divisors (see below), whose sum is σ = 1362143328. Its totient is φ = 523901160.

The previous prime is 864437011. The next prime is 864437027. The reversal of 864437013 is 310734468.

864437013 is a `hidden beast` number, since 8 + 644 + 3 + 7 + 0 + 1 + 3 = 666.

It is not a de Polignac number, because 864437013 - 2¹ = 864437011 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864437011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4365745 + ... + 4365942.

It is an arithmetic number, because the mean of its divisors is an integer number (113511944).

Almost surely, 2^864437013 is an apocalyptic number.

It is an amenable number.

864437013 is a deficient number, since it is larger than the sum of its proper divisors (497706315).

864437013 is a wasteful number, since it uses less digits than its factorization.

864437013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8731704 (or 8731701 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 864437013 is about 29401.3097157253. The cubic root of 864437013 is about 952.6011862661.

The spelling of 864437013 in words is "eight hundred sixty-four million, four hundred thirty-seven thousand, thirteen".