99308286 has 96 divisors (see below), whose sum is σ = 270736128. Its totient is φ = 25557120.

The previous prime is 99308263. The next prime is 99308311. The reversal of 99308286 is 68280399.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 189621 + ... + 190143.

It is an arithmetic number, because the mean of its divisors is an integer number (2820168).

Almost surely, 2^99308286 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99308286, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135368064).

99308286 is an abundant number, since it is smaller than the sum of its proper divisors (171427842).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99308286 is a wasteful number, since it uses less digits than its factorization.

99308286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686 (or 683 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 99308286 is about 9965.3542837172. The cubic root of 99308286 is about 463.0861888941.

The spelling of 99308286 in words is "ninety-nine million, three hundred eight thousand, two hundred eighty-six".