99890216 has 16 divisors (see below), whose sum is σ = 189014100. Its totient is φ = 49486464.

The previous prime is 99890209. The next prime is 99890221. The reversal of 99890216 is 61209899.

It can be written as a sum of positive squares in 2 ways, for example, as 97101316 + 2788900 = 9854^2 + 1670^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56405 + ... + 58148.

Almost surely, 2^99890216 is an apocalyptic number.

It is an amenable number.

99890216 is a deficient number, since it is larger than the sum of its proper divisors (89123884).

99890216 is a wasteful number, since it uses less digits than its factorization.

99890216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114668 (or 114664 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 44.

The square root of 99890216 is about 9994.5092926066. The cubic root of 99890216 is about 463.9889637684.

The spelling of 99890216 in words is "ninety-nine million, eight hundred ninety thousand, two hundred sixteen".