99238261 has 8 divisors (see below), whose sum is σ = 107124480. Its totient is φ = 91649712.

The previous prime is 99238259. The next prime is 99238267. The reversal of 99238261 is 16283299.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 99238261 - 2¹ = 99238259 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99238267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73725 + ... + 75058.

It is an arithmetic number, because the mean of its divisors is an integer number (13390560).

Almost surely, 2^99238261 is an apocalyptic number.

It is an amenable number.

99238261 is a deficient number, since it is larger than the sum of its proper divisors (7886219).

99238261 is a wasteful number, since it uses less digits than its factorization.

99238261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148835.

The product of its digits is 46656, while the sum is 40.

The square root of 99238261 is about 9961.8402416421. The cubic root of 99238261 is about 462.9773183707.

It can be divided in two parts, 99238 and 261, that added together give a palindrome (99499).

The spelling of 99238261 in words is "ninety-nine million, two hundred thirty-eight thousand, two hundred sixty-one".