89318385 has 24 divisors (see below), whose sum is σ = 166728744. Its totient is φ = 43971840.

The previous prime is 89318381. The next prime is 89318393. The reversal of 89318385 is 58381398.

It can be written as a sum of positive squares in 4 ways, for example, as 7017201 + 82301184 = 2649^2 + 9072^2 .

It is not a de Polignac number, because 89318385 - 2² = 89318381 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 89318385.

It is not an unprimeable number, because it can be changed into a prime (89318381) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75756 + ... + 76925.

It is an arithmetic number, because the mean of its divisors is an integer number (6947031).

Almost surely, 2^89318385 is an apocalyptic number.

It is an amenable number.

89318385 is a deficient number, since it is larger than the sum of its proper divisors (77410359).

89318385 is a wasteful number, since it uses less digits than its factorization.

89318385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152705 (or 152702 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 89318385 is about 9450.8404388181. The cubic root of 89318385 is about 447.0062759055.

The spelling of 89318385 in words is "eighty-nine million, three hundred eighteen thousand, three hundred eighty-five".