864806837 has 16 divisors (see below), whose sum is σ = 896880000. Its totient is φ = 833462784.

The previous prime is 864806819. The next prime is 864806851. The reversal of 864806837 is 738608468.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 864806837 - 2¹⁶ = 864741301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864806807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 856589 + ... + 857597.

It is an arithmetic number, because the mean of its divisors is an integer number (56055000).

Almost surely, 2^864806837 is an apocalyptic number.

It is an amenable number.

864806837 is a deficient number, since it is larger than the sum of its proper divisors (32073163).

864806837 is a wasteful number, since it uses less digits than its factorization.

864806837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340.

The product of its (nonzero) digits is 1548288, while the sum is 50.

The square root of 864806837 is about 29407.5982868374. The cubic root of 864806837 is about 952.7370143824.

The spelling of 864806837 in words is "eight hundred sixty-four million, eight hundred six thousand, eight hundred thirty-seven".