99409994 has 16 divisors (see below), whose sum is σ = 157683456. Its totient is φ = 46927200.

The previous prime is 99409987. The next prime is 99410021. The reversal of 99409994 is 49990499.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17012 + ... + 22095.

It is an arithmetic number, because the mean of its divisors is an integer number (9855216).

Almost surely, 2^99409994 is an apocalyptic number.

99409994 is a deficient number, since it is larger than the sum of its proper divisors (58273462).

99409994 is a wasteful number, since it uses less digits than its factorization.

99409994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39181.

The product of its (nonzero) digits is 944784, while the sum is 53.

The square root of 99409994 is about 9970.4560577739. The cubic root of 99409994 is about 463.2442270663.

The spelling of 99409994 in words is "ninety-nine million, four hundred nine thousand, nine hundred ninety-four".