89305998637 has 4 divisors (see below), whose sum is σ = 89393640480. Its totient is φ = 89218356796.

The previous prime is 89305998631. The next prime is 89305998659. The reversal of 89305998637 is 73689950398.

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 89305998637 - 2²³ = 89297610029 is a prime.

It is a super-2 number, since 2×89305998637² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89305998631) 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, 43819393 + ... + 43821430.

It is an arithmetic number, because the mean of its divisors is an integer number (22348410120).

Almost surely, 2^89305998637 is an apocalyptic number.

It is an amenable number.

89305998637 is a deficient number, since it is larger than the sum of its proper divisors (87641843).

89305998637 is a wasteful number, since it uses less digits than its factorization.

89305998637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87641842.

The product of its (nonzero) digits is 88179840, while the sum is 67.

The spelling of 89305998637 in words is "eighty-nine billion, three hundred five million, nine hundred ninety-eight thousand, six hundred thirty-seven".