89311365 has 48 divisors (see below), whose sum is σ = 181883520. Its totient is φ = 39968640.

The previous prime is 89311363. The next prime is 89311379. The reversal of 89311365 is 56311398.

It is a happy number.

It is not a de Polignac number, because 89311365 - 2¹ = 89311363 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89311363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 505 + ... + 13374.

It is an arithmetic number, because the mean of its divisors is an integer number (3789240).

Almost surely, 2^89311365 is an apocalyptic number.

It is an amenable number.

89311365 is an abundant number, since it is smaller than the sum of its proper divisors (92572155).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

89311365 is a wasteful number, since it uses less digits than its factorization.

89311365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13914 (or 13911 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 89311365 is about 9450.4690359791. The cubic root of 89311365 is about 446.9945647433.

It can be divided in two parts, 89311 and 365, that added together give a triangular number (89676 = T₄₂₃).

The spelling of 89311365 in words is "eighty-nine million, three hundred eleven thousand, three hundred sixty-five".