89939237 has 4 divisors (see below), whose sum is σ = 93040620. Its totient is φ = 86837856.

The previous prime is 89939221. The next prime is 89939243. The reversal of 89939237 is 73293998.

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 25715041 + 64224196 = 5071^2 + 8014^2 .

It is a cyclic number.

It is not a de Polignac number, because 89939237 - 2⁴ = 89939221 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 (89939207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1550648 + ... + 1550705.

It is an arithmetic number, because the mean of its divisors is an integer number (23260155).

Almost surely, 2^89939237 is an apocalyptic number.

It is an amenable number.

89939237 is a deficient number, since it is larger than the sum of its proper divisors (3101383).

89939237 is a wasteful number, since it uses less digits than its factorization.

89939237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3101382.

The product of its digits is 734832, while the sum is 50.

The square root of 89939237 is about 9483.6299484955. The cubic root of 89939237 is about 448.0395987664.

The spelling of 89939237 in words is "eighty-nine million, nine hundred thirty-nine thousand, two hundred thirty-seven".