89707939 has 4 divisors (see below), whose sum is σ = 90226656. Its totient is φ = 89189224.

The previous prime is 89707931. The next prime is 89707957. The reversal of 89707939 is 93970798.

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

It is a cyclic number.

It is not a de Polignac number, because 89707939 - 2³ = 89707931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89707931) 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, 259099 + ... + 259444.

It is an arithmetic number, because the mean of its divisors is an integer number (22556664).

Almost surely, 2^89707939 is an apocalyptic number.

89707939 is a deficient number, since it is larger than the sum of its proper divisors (518717).

89707939 is a wasteful number, since it uses less digits than its factorization.

89707939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518716.

The product of its (nonzero) digits is 857304, while the sum is 52.

The square root of 89707939 is about 9471.4275059254. The cubic root of 89707939 is about 447.6551924722.

The spelling of 89707939 in words is "eighty-nine million, seven hundred seven thousand, nine hundred thirty-nine".