89470091 has 4 divisors (see below), whose sum is σ = 89535000. Its totient is φ = 89405184.

The previous prime is 89470063. The next prime is 89470097. The reversal of 89470091 is 19007498.

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 89470091 - 2⁶ = 89470027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89470097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30341 + ... + 33158.

It is an arithmetic number, because the mean of its divisors is an integer number (22383750).

Almost surely, 2^89470091 is an apocalyptic number.

89470091 is a deficient number, since it is larger than the sum of its proper divisors (64909).

89470091 is a wasteful number, since it uses less digits than its factorization.

89470091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64908.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 89470091 is about 9458.8630923595. The cubic root of 89470091 is about 447.2592106805.

The spelling of 89470091 in words is "eighty-nine million, four hundred seventy thousand, ninety-one".