99574279 has 8 divisors (see below), whose sum is σ = 114668928. Its totient is φ = 84697080.

The previous prime is 99574273. The next prime is 99574303. The reversal of 99574279 is 97247599.

It is a happy number.

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 99574279 - 2³ = 99574271 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 (99574271) 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, 53377 + ... + 55210.

It is an arithmetic number, because the mean of its divisors is an integer number (14333616).

Almost surely, 2^99574279 is an apocalyptic number.

99574279 is a deficient number, since it is larger than the sum of its proper divisors (15094649).

99574279 is a wasteful number, since it uses less digits than its factorization.

99574279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108725.

The product of its digits is 1428840, while the sum is 52.

The square root of 99574279 is about 9978.6912468520. The cubic root of 99574279 is about 463.4992724933.

The spelling of 99574279 in words is "ninety-nine million, five hundred seventy-four thousand, two hundred seventy-nine".