99279315 has 12 divisors (see below), whose sum is σ = 172084224. Its totient is φ = 52948944.

The previous prime is 99279289. The next prime is 99279319. The reversal of 99279315 is 51397299.

It is a happy number.

It is not a de Polignac number, because 99279315 - 2¹² = 99275219 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 2206207 = 99279315 / (9 + 9 + 2 + 7 + 9 + 3 + 1 + 5).

It is not an unprimeable number, because it can be changed into a prime (99279319) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1103059 + ... + 1103148.

It is an arithmetic number, because the mean of its divisors is an integer number (14340352).

Almost surely, 2^99279315 is an apocalyptic number.

99279315 is a deficient number, since it is larger than the sum of its proper divisors (72804909).

99279315 is a wasteful number, since it uses less digits than its factorization.

99279315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2206218 (or 2206215 counting only the distinct ones).

The product of its digits is 153090, while the sum is 45.

The square root of 99279315 is about 9963.9005916358. The cubic root of 99279315 is about 463.0411527904.

The spelling of 99279315 in words is "ninety-nine million, two hundred seventy-nine thousand, three hundred fifteen".