99890994 has 16 divisors (see below), whose sum is σ = 228322368. Its totient is φ = 28540272.

The previous prime is 99890969. The next prime is 99891013. The reversal of 99890994 is 49909899.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1189137 + ... + 1189220.

It is an arithmetic number, because the mean of its divisors is an integer number (14270148).

Almost surely, 2^99890994 is an apocalyptic number.

99890994 is an abundant number, since it is smaller than the sum of its proper divisors (128431374).

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

99890994 is a wasteful number, since it uses less digits than its factorization.

99890994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2378369.

The product of its (nonzero) digits is 1889568, while the sum is 57.

The square root of 99890994 is about 9994.5482139014. The cubic root of 99890994 is about 463.9901683658.

The spelling of 99890994 in words is "ninety-nine million, eight hundred ninety thousand, nine hundred ninety-four".