8664836957 has 4 divisors (see below), whose sum is σ = 9902670816. Its totient is φ = 7427003100.

The previous prime is 8664836911. The next prime is 8664836959. The reversal of 8664836957 is 7596384668.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8664836957 - 2¹² = 8664832861 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8664836957.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8664836959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 618916919 + ... + 618916932.

It is an arithmetic number, because the mean of its divisors is an integer number (2475667704).

Almost surely, 2^8664836957 is an apocalyptic number.

It is an amenable number.

8664836957 is a deficient number, since it is larger than the sum of its proper divisors (1237833859).

8664836957 is a wasteful number, since it uses less digits than its factorization.

8664836957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1237833858.

The product of its digits is 52254720, while the sum is 62.

The square root of 8664836957 is about 93085.1059890894. The cubic root of 8664836957 is about 2053.9354863788.

The spelling of 8664836957 in words is "eight billion, six hundred sixty-four million, eight hundred thirty-six thousand, nine hundred fifty-seven".