89401237 has 4 divisors (see below), whose sum is σ = 89503596. Its totient is φ = 89298880.

The previous prime is 89401231. The next prime is 89401259. The reversal of 89401237 is 73210498.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25816561 + 63584676 = 5081^2 + 7974^2 .

It is a cyclic number.

It is not a de Polignac number, because 89401237 - 2¹⁵ = 89368469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89401231) 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 3 ways as a sum of consecutive naturals, for example, 49858 + ... + 51619.

It is an arithmetic number, because the mean of its divisors is an integer number (22375899).

Almost surely, 2^89401237 is an apocalyptic number.

It is an amenable number.

89401237 is a deficient number, since it is larger than the sum of its proper divisors (102359).

89401237 is a wasteful number, since it uses less digits than its factorization.

89401237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102358.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 89401237 is about 9455.2227366678. Note that the first 3 decimals coincide. The cubic root of 89401237 is about 447.1444479757.

The spelling of 89401237 in words is "eighty-nine million, four hundred one thousand, two hundred thirty-seven".