89180409 has 16 divisors (see below), whose sum is σ = 122169344. Its totient is φ = 57834000.

The previous prime is 89180389. The next prime is 89180411. The reversal of 89180409 is 90408198.

It is not a de Polignac number, because 89180409 - 2⁹ = 89179897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89180209) 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 15 ways as a sum of consecutive naturals, for example, 33684 + ... + 36234.

It is an arithmetic number, because the mean of its divisors is an integer number (7635584).

Almost surely, 2^89180409 is an apocalyptic number.

It is an amenable number.

89180409 is a deficient number, since it is larger than the sum of its proper divisors (32988935).

89180409 is a wasteful number, since it uses less digits than its factorization.

89180409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2868.

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 89180409 is about 9443.5379493069. The cubic root of 89180409 is about 446.7759839239.

The spelling of 89180409 in words is "eighty-nine million, one hundred eighty thousand, four hundred nine".