99394087 has 16 divisors (see below), whose sum is σ = 114791040. Its totient is φ = 85243392.

The previous prime is 99394039. The next prime is 99394103. The reversal of 99394087 is 78049399.

It is a de Polignac number, because none of the positive numbers 2^k-99394087 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99394087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99394037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14613 + ... + 20305.

It is an arithmetic number, because the mean of its divisors is an integer number (7174440).

Almost surely, 2^99394087 is an apocalyptic number.

99394087 is a deficient number, since it is larger than the sum of its proper divisors (15396953).

99394087 is a wasteful number, since it uses less digits than its factorization.

99394087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5802.

The product of its (nonzero) digits is 489888, while the sum is 49.

The square root of 99394087 is about 9969.6583191201. The cubic root of 99394087 is about 463.2195172134.

The spelling of 99394087 in words is "ninety-nine million, three hundred ninety-four thousand, eighty-seven".