89864294731 has 4 divisors (see below), whose sum is σ = 90237175864. Its totient is φ = 89491413600.

The previous prime is 89864294657. The next prime is 89864294833. The reversal of 89864294731 is 13749246898.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 89864294731 - 2²⁹ = 89327423819 is a prime.

It is a super-2 number, since 2×89864294731² (a number of 23 digits) contains 22 as substring.

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 89864294731.

It is not an unprimeable number, because it can be changed into a prime (89864298731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186440205 + ... + 186440686.

It is an arithmetic number, because the mean of its divisors is an integer number (22559293966).

Almost surely, 2^89864294731 is an apocalyptic number.

89864294731 is a deficient number, since it is larger than the sum of its proper divisors (372881133).

89864294731 is a wasteful number, since it uses less digits than its factorization.

89864294731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372881132.

The product of its digits is 20901888, while the sum is 61.

The spelling of 89864294731 in words is "eighty-nine billion, eight hundred sixty-four million, two hundred ninety-four thousand, seven hundred thirty-one".