99506238 has 32 divisors (see below), whose sum is σ = 218889216. Its totient is φ = 29964768.

The previous prime is 99506233. The next prime is 99506261. The reversal of 99506238 is 83260599.

It is a self number, because there is not a number n which added to its sum of digits gives 99506238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99506233) 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, 9906 + ... + 17237.

It is an arithmetic number, because the mean of its divisors is an integer number (6840288).

Almost surely, 2^99506238 is an apocalyptic number.

99506238 is an abundant number, since it is smaller than the sum of its proper divisors (119382978).

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

99506238 is a wasteful number, since it uses less digits than its factorization.

99506238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27208.

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 99506238 is about 9975.2813494157. The cubic root of 99506238 is about 463.3936758127.

The spelling of 99506238 in words is "ninety-nine million, five hundred six thousand, two hundred thirty-eight".