89569947 has 16 divisors (see below), whose sum is σ = 122054688. Its totient is φ = 58406400.

The previous prime is 89569937. The next prime is 89569969. The reversal of 89569947 is 74996598.

It is not a de Polignac number, because 89569947 - 2⁸ = 89569691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89569927) 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, 68197 + ... + 69497.

It is an arithmetic number, because the mean of its divisors is an integer number (7628418).

Almost surely, 2^89569947 is an apocalyptic number.

89569947 is a deficient number, since it is larger than the sum of its proper divisors (32484741).

89569947 is a wasteful number, since it uses less digits than its factorization.

89569947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1790.

The product of its digits is 4898880, while the sum is 57.

The square root of 89569947 is about 9464.1400560220. The cubic root of 89569947 is about 447.4255415374.

The spelling of 89569947 in words is "eighty-nine million, five hundred sixty-nine thousand, nine hundred forty-seven".