99204517 has 4 divisors (see below), whose sum is σ = 99616396. Its totient is φ = 98792640.

The previous prime is 99204493. The next prime is 99204527. The reversal of 99204517 is 71540299.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27311076 + 71893441 = 5226^2 + 8479^2 .

It is a cyclic number.

It is not a de Polignac number, because 99204517 - 2²³ = 90815909 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 (99204527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205578 + ... + 206059.

It is an arithmetic number, because the mean of its divisors is an integer number (24904099).

Almost surely, 2^99204517 is an apocalyptic number.

It is an amenable number.

99204517 is a deficient number, since it is larger than the sum of its proper divisors (411879).

99204517 is a wasteful number, since it uses less digits than its factorization.

99204517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411878.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 99204517 is about 9960.1464346665. The cubic root of 99204517 is about 462.9248370074.

The spelling of 99204517 in words is "ninety-nine million, two hundred four thousand, five hundred seventeen".