89999439 has 8 divisors (see below), whose sum is σ = 120944640. Its totient is φ = 59526936.

The previous prime is 89999369. The next prime is 89999453. The reversal of 89999439 is 93499998.

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

It is not a de Polignac number, because 89999439 - 2⁷ = 89999311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89994439) 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, 117729 + ... + 118490.

It is an arithmetic number, because the mean of its divisors is an integer number (15118080).

Almost surely, 2^89999439 is an apocalyptic number.

89999439 is a deficient number, since it is larger than the sum of its proper divisors (30945201).

89999439 is a wasteful number, since it uses less digits than its factorization.

89999439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236349.

The product of its digits is 5668704, while the sum is 60.

The square root of 89999439 is about 9486.8034131629. The cubic root of 89999439 is about 448.1395435175.

The spelling of 89999439 in words is "eighty-nine million, nine hundred ninety-nine thousand, four hundred thirty-nine".