99405205 has 8 divisors (see below), whose sum is σ = 126303192. Its totient is φ = 74846208.

The previous prime is 99405179. The next prime is 99405209. The reversal of 99405205 is 50250499.

It can be written as a sum of positive squares in 4 ways, for example, as 12859396 + 86545809 = 3586^2 + 9303^2 .

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 99405205 - 2²⁵ = 65850773 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 (99405209) 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, 584652 + ... + 584821.

It is an arithmetic number, because the mean of its divisors is an integer number (15787899).

Almost surely, 2^99405205 is an apocalyptic number.

It is an amenable number.

99405205 is a deficient number, since it is larger than the sum of its proper divisors (26897987).

99405205 is a wasteful number, since it uses less digits than its factorization.

99405205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1169495.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 99405205 is about 9970.2158953555. The cubic root of 99405205 is about 463.2367881354.

The spelling of 99405205 in words is "ninety-nine million, four hundred five thousand, two hundred five".