99394172 has 24 divisors (see below), whose sum is σ = 186703776. Its totient is φ = 46130688.

The previous prime is 99394151. The next prime is 99394181. The reversal of 99394172 is 27149399.

It is a congruent number.

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, 5048 + ... + 14975.

It is an arithmetic number, because the mean of its divisors is an integer number (7779324).

Almost surely, 2^99394172 is an apocalyptic number.

It is an amenable number.

99394172 is a deficient number, since it is larger than the sum of its proper divisors (87309604).

99394172 is a wasteful number, since it uses less digits than its factorization.

99394172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20117 (or 20115 counting only the distinct ones).

The product of its digits is 122472, while the sum is 44.

The square root of 99394172 is about 9969.6625820536. The cubic root of 99394172 is about 463.2196492590.

The spelling of 99394172 in words is "ninety-nine million, three hundred ninety-four thousand, one hundred seventy-two".