99698290 has 16 divisors (see below), whose sum is σ = 181916568. Its totient is φ = 39332736.

The previous prime is 99698279. The next prime is 99698299. The reversal of 99698290 is 9289699.

It can be written as a sum of positive squares in 4 ways, for example, as 63059481 + 36638809 = 7941^2 + 6053^2 .

It is not an unprimeable number, because it can be changed into a prime (99698299) 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, 67557 + ... + 69016.

Almost surely, 2^99698290 is an apocalyptic number.

99698290 is a deficient number, since it is larger than the sum of its proper divisors (82218278).

99698290 is a wasteful number, since it uses less digits than its factorization.

99698290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136653.

The product of its (nonzero) digits is 629856, while the sum is 52.

The square root of 99698290 is about 9984.9031041868. The cubic root of 99698290 is about 463.6916085184.

The spelling of 99698290 in words is "ninety-nine million, six hundred ninety-eight thousand, two hundred ninety".