89731908983 has 12 divisors (see below), whose sum is σ = 91939375440. Its totient is φ = 87576291936.

The previous prime is 89731908977. The next prime is 89731908989. The reversal of 89731908983 is 38980913798.

It is an interprime number because it is at equal distance from previous prime (89731908977) and next prime (89731908989).

It is not a de Polignac number, because 89731908983 - 2¹⁴ = 89731892599 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 (89731908989) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2420435 + ... + 2457227.

It is an arithmetic number, because the mean of its divisors is an integer number (7661614620).

Almost surely, 2^89731908983 is an apocalyptic number.

89731908983 is a deficient number, since it is larger than the sum of its proper divisors (2207466457).

89731908983 is a wasteful number, since it uses less digits than its factorization.

89731908983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38198 (or 38155 counting only the distinct ones).

The product of its (nonzero) digits is 23514624, while the sum is 65.

The spelling of 89731908983 in words is "eighty-nine billion, seven hundred thirty-one million, nine hundred eight thousand, nine hundred eighty-three".