89531445 has 16 divisors (see below), whose sum is σ = 143425152. Its totient is φ = 47691840.

The previous prime is 89531437. The next prime is 89531447. The reversal of 89531445 is 54413598.

It is not a de Polignac number, because 89531445 - 2³ = 89531437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89531447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10944 + ... + 17286.

It is an arithmetic number, because the mean of its divisors is an integer number (8964072).

Almost surely, 2^89531445 is an apocalyptic number.

It is an amenable number.

89531445 is a deficient number, since it is larger than the sum of its proper divisors (53893707).

89531445 is a wasteful number, since it uses less digits than its factorization.

89531445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7292.

The product of its digits is 86400, while the sum is 39.

The square root of 89531445 is about 9462.1057381536. The cubic root of 89531445 is about 447.3614231298.

The spelling of 89531445 in words is "eighty-nine million, five hundred thirty-one thousand, four hundred forty-five".