89811137 has 8 divisors (see below), whose sum is σ = 96885096. Its totient is φ = 82760832.

The previous prime is 89811121. The next prime is 89811167. The reversal of 89811137 is 73111898.

It can be written as a sum of positive squares in 4 ways, for example, as 5612161 + 84198976 = 2369^2 + 9176^2 .

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 89811137 - 2⁴ = 89811121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 89811137.

It is not an unprimeable number, because it can be changed into a prime (89811107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2423 + ... + 13619.

It is an arithmetic number, because the mean of its divisors is an integer number (12110637).

Almost surely, 2^89811137 is an apocalyptic number.

It is an amenable number.

89811137 is a deficient number, since it is larger than the sum of its proper divisors (7073959).

89811137 is a wasteful number, since it uses less digits than its factorization.

89811137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11827.

The product of its digits is 12096, while the sum is 38.

The square root of 89811137 is about 9476.8737988854. The cubic root of 89811137 is about 447.8267841867.

The spelling of 89811137 in words is "eighty-nine million, eight hundred eleven thousand, one hundred thirty-seven".