89920437 has 8 divisors (see below), whose sum is σ = 120515904. Its totient is φ = 59635968.

The previous prime is 89920433. The next prime is 89920459. The reversal of 89920437 is 73402998.

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

It is not a de Polignac number, because 89920437 - 2² = 89920433 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89920433) 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, 77073 + ... + 78230.

It is an arithmetic number, because the mean of its divisors is an integer number (15064488).

Almost surely, 2^89920437 is an apocalyptic number.

It is an amenable number.

89920437 is a deficient number, since it is larger than the sum of its proper divisors (30595467).

89920437 is a wasteful number, since it uses less digits than its factorization.

89920437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155499.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 89920437 is about 9482.6387150413. The cubic root of 89920437 is about 448.0083786831.

The spelling of 89920437 in words is "eighty-nine million, nine hundred twenty thousand, four hundred thirty-seven".