89385815 has 8 divisors (see below), whose sum is σ = 108468720. Its totient is φ = 70704832.

The previous prime is 89385811. The next prime is 89385851. The reversal of 89385815 is 51858398.

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 89385815 - 2² = 89385811 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 89385815.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89385811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99989 + ... + 100878.

It is an arithmetic number, because the mean of its divisors is an integer number (13558590).

Almost surely, 2^89385815 is an apocalyptic number.

89385815 is a deficient number, since it is larger than the sum of its proper divisors (19082905).

89385815 is a wasteful number, since it uses less digits than its factorization.

89385815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200961.

The product of its digits is 345600, while the sum is 47.

The square root of 89385815 is about 9454.4071733769. The cubic root of 89385815 is about 447.1187352135.

The spelling of 89385815 in words is "eighty-nine million, three hundred eighty-five thousand, eight hundred fifteen".