89020437 has 32 divisors (see below), whose sum is σ = 134701056. Its totient is φ = 51806400.

The previous prime is 89020433. The next prime is 89020447. The reversal of 89020437 is 73402098.

It is not a de Polignac number, because 89020437 - 2² = 89020433 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 89020398 and 89020407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89020433) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 176728 + ... + 177230.

It is an arithmetic number, because the mean of its divisors is an integer number (4209408).

Almost surely, 2^89020437 is an apocalyptic number.

It is an amenable number.

89020437 is a deficient number, since it is larger than the sum of its proper divisors (45680619).

89020437 is a wasteful number, since it uses less digits than its factorization.

89020437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 89020437 is about 9435.0642287162. The cubic root of 89020437 is about 446.5086814731.

The spelling of 89020437 in words is "eighty-nine million, twenty thousand, four hundred thirty-seven".