89509899 has 16 divisors (see below), whose sum is σ = 122085792. Its totient is φ = 58318848.

The previous prime is 89509883. The next prime is 89509907. The reversal of 89509899 is 99890598.

It is not a de Polignac number, because 89509899 - 2⁴ = 89509883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89509099) 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, 22939 + ... + 26555.

It is an arithmetic number, because the mean of its divisors is an integer number (7630362).

Almost surely, 2^89509899 is an apocalyptic number.

89509899 is a deficient number, since it is larger than the sum of its proper divisors (32575893).

89509899 is a wasteful number, since it uses less digits than its factorization.

89509899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3806.

The product of its (nonzero) digits is 2099520, while the sum is 57.

The square root of 89509899 is about 9460.9671281534. The cubic root of 89509899 is about 447.3255339792.

The spelling of 89509899 in words is "eighty-nine million, five hundred nine thousand, eight hundred ninety-nine".