89869579 has 16 divisors (see below), whose sum is σ = 98507520. Its totient is φ = 81718560.

The previous prime is 89869573. The next prime is 89869597. The reversal of 89869579 is 97596898.

It is not a de Polignac number, because 89869579 - 2⁹ = 89869067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89869573) 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, 43684 + ... + 45694.

It is an arithmetic number, because the mean of its divisors is an integer number (6156720).

Almost surely, 2^89869579 is an apocalyptic number.

89869579 is a deficient number, since it is larger than the sum of its proper divisors (8637941).

89869579 is a wasteful number, since it uses less digits than its factorization.

89869579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2130.

The product of its digits is 9797760, while the sum is 61.

The square root of 89869579 is about 9479.9566982133. The cubic root of 89869579 is about 447.9238999007.

The spelling of 89869579 in words is "eighty-nine million, eight hundred sixty-nine thousand, five hundred seventy-nine".