89406638983 has 4 divisors (see below), whose sum is σ = 89432475048. Its totient is φ = 89380802920.

The previous prime is 89406638977. The next prime is 89406639011. The reversal of 89406638983 is 38983660498.

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 89406638983 - 2²⁵ = 89373084551 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 (89406632983) 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, 12912841 + ... + 12919762.

It is an arithmetic number, because the mean of its divisors is an integer number (22358118762).

Almost surely, 2^89406638983 is an apocalyptic number.

89406638983 is a deficient number, since it is larger than the sum of its proper divisors (25836065).

89406638983 is a wasteful number, since it uses less digits than its factorization.

89406638983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25836064.

The product of its (nonzero) digits is 53747712, while the sum is 64.

The spelling of 89406638983 in words is "eighty-nine billion, four hundred six million, six hundred thirty-eight thousand, nine hundred eighty-three".