99279745 has 16 divisors (see below), whose sum is σ = 128832768. Its totient is φ = 73158400.

The previous prime is 99279727. The next prime is 99279749. The reversal of 99279745 is 54797299.

It is a happy number.

It is not a de Polignac number, because 99279745 - 2¹⁵ = 99246977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 99279692 and 99279701.

It is not an unprimeable number, because it can be changed into a prime (99279749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8431 + ... + 16420.

It is an arithmetic number, because the mean of its divisors is an integer number (8052048).

Almost surely, 2^99279745 is an apocalyptic number.

It is an amenable number.

99279745 is a deficient number, since it is larger than the sum of its proper divisors (29553023).

99279745 is a wasteful number, since it uses less digits than its factorization.

99279745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24920.

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

The square root of 99279745 is about 9963.9221695073. The cubic root of 99279745 is about 463.0418212996.

The spelling of 99279745 in words is "ninety-nine million, two hundred seventy-nine thousand, seven hundred forty-five".