89311995 has 12 divisors (see below), whose sum is σ = 154807536. Its totient is φ = 47633040.

The previous prime is 89311993. The next prime is 89312039. The reversal of 89311995 is 59911398.

It is not a de Polignac number, because 89311995 - 2¹ = 89311993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1984711 = 89311995 / (8 + 9 + 3 + 1 + 1 + 9 + 9 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 89311995.

It is not an unprimeable number, because it can be changed into a prime (89311993) 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, 992311 + ... + 992400.

It is an arithmetic number, because the mean of its divisors is an integer number (12900628).

Almost surely, 2^89311995 is an apocalyptic number.

89311995 is a deficient number, since it is larger than the sum of its proper divisors (65495541).

89311995 is a wasteful number, since it uses less digits than its factorization.

89311995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1984722 (or 1984719 counting only the distinct ones).

The product of its digits is 87480, while the sum is 45.

The square root of 89311995 is about 9450.5023675993. The cubic root of 89311995 is about 446.9956157701.

The spelling of 89311995 in words is "eighty-nine million, three hundred eleven thousand, nine hundred ninety-five".