99024239 has 4 divisors (see below), whose sum is σ = 99056400. Its totient is φ = 98992080.

The previous prime is 99024221. The next prime is 99024251. The reversal of 99024239 is 93242099.

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 99024239 - 2²⁴ = 82247023 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 (99024259) 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, 10907 + ... + 17804.

It is an arithmetic number, because the mean of its divisors is an integer number (24764100).

Almost surely, 2^99024239 is an apocalyptic number.

99024239 is a deficient number, since it is larger than the sum of its proper divisors (32161).

99024239 is a wasteful number, since it uses less digits than its factorization.

99024239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32160.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 99024239 is about 9951.0923520988. The cubic root of 99024239 is about 462.6442524468.

It can be divided in two parts, 9902 and 4239, that added together give a palindrome (14141).

The spelling of 99024239 in words is "ninety-nine million, twenty-four thousand, two hundred thirty-nine".