89811249 has 8 divisors (see below), whose sum is σ = 130634592. Its totient is φ = 54431040.

The previous prime is 89811217. The next prime is 89811257. The reversal of 89811249 is 94211898.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 89811249 - 2⁵ = 89811217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 89811249.

It is not an unprimeable number, because it can be changed into a prime (89811209) 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 7 ways as a sum of consecutive naturals, for example, 1360744 + ... + 1360809.

It is an arithmetic number, because the mean of its divisors is an integer number (16329324).

Almost surely, 2^89811249 is an apocalyptic number.

It is an amenable number.

89811249 is a deficient number, since it is larger than the sum of its proper divisors (40823343).

89811249 is a wasteful number, since it uses less digits than its factorization.

89811249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2721567.

The product of its digits is 41472, while the sum is 42.

The square root of 89811249 is about 9476.8797080052. The cubic root of 89811249 is about 447.8269703424.

The spelling of 89811249 in words is "eighty-nine million, eight hundred eleven thousand, two hundred forty-nine".