99426239 has 8 divisors (see below), whose sum is σ = 112205520. Its totient is φ = 87270400.

The previous prime is 99426233. The next prime is 99426253. The reversal of 99426239 is 93262499.

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

It is a cyclic number.

It is not a de Polignac number, because 99426239 - 2⁸ = 99425983 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 99426239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99426233) 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, 155522 + ... + 156159.

It is an arithmetic number, because the mean of its divisors is an integer number (14025690).

Almost surely, 2^99426239 is an apocalyptic number.

99426239 is a deficient number, since it is larger than the sum of its proper divisors (12779281).

99426239 is a wasteful number, since it uses less digits than its factorization.

99426239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311721.

The product of its digits is 209952, while the sum is 44.

The square root of 99426239 is about 9971.2706813124. The cubic root of 99426239 is about 463.2694592463.

The spelling of 99426239 in words is "ninety-nine million, four hundred twenty-six thousand, two hundred thirty-nine".