89899571 has 8 divisors (see below), whose sum is σ = 94289184. Its totient is φ = 85550080.

The previous prime is 89899567. The next prime is 89899577. The reversal of 89899571 is 17599898.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 89899571 - 2² = 89899567 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89899577) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5390 + ... + 14451.

It is an arithmetic number, because the mean of its divisors is an integer number (11786148).

Almost surely, 2^89899571 is an apocalyptic number.

89899571 is a deficient number, since it is larger than the sum of its proper divisors (4389613).

89899571 is a wasteful number, since it uses less digits than its factorization.

89899571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20061.

The product of its digits is 1632960, while the sum is 56.

The square root of 89899571 is about 9481.5384300228. The cubic root of 89899571 is about 447.9737226164.

The spelling of 89899571 in words is "eighty-nine million, eight hundred ninety-nine thousand, five hundred seventy-one".