99638234 has 8 divisors (see below), whose sum is σ = 149542848. Its totient is φ = 49790620.

The previous prime is 99638233. The next prime is 99638243. The reversal of 99638234 is 43283699.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (99638233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9572 + ... + 17055.

It is an arithmetic number, because the mean of its divisors is an integer number (18692856).

Almost surely, 2^99638234 is an apocalyptic number.

99638234 is a deficient number, since it is larger than the sum of its proper divisors (49904614).

99638234 is a wasteful number, since it uses less digits than its factorization.

99638234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28500.

The product of its digits is 279936, while the sum is 44.

The square root of 99638234 is about 9981.8953110118. The cubic root of 99638234 is about 463.5984840303.

The spelling of 99638234 in words is "ninety-nine million, six hundred thirty-eight thousand, two hundred thirty-four".