99754209 has 6 divisors (see below), whose sum is σ = 144089426. Its totient is φ = 66502800.

The previous prime is 99754201. The next prime is 99754211. The reversal of 99754209 is 90245799.

It can be written as a sum of positive squares in only one way, i.e., 85100625 + 14653584 = 9225^2 + 3828^2 .

It is not a de Polignac number, because 99754209 - 2³ = 99754201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99754201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5541892 + ... + 5541909.

Almost surely, 2^99754209 is an apocalyptic number.

It is an amenable number.

99754209 is a deficient number, since it is larger than the sum of its proper divisors (44335217).

99754209 is a wasteful number, since it uses less digits than its factorization.

99754209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11083807 (or 11083804 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The square root of 99754209 is about 9987.7028890531. The cubic root of 99754209 is about 463.7782844445.

The spelling of 99754209 in words is "ninety-nine million, seven hundred fifty-four thousand, two hundred nine".