99238725 has 72 divisors (see below), whose sum is σ = 187443360. Its totient is φ = 50117760.

The previous prime is 99238717. The next prime is 99238757. The reversal of 99238725 is 52783299.

It is not a de Polignac number, because 99238725 - 2³ = 99238717 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 437062 + ... + 437288.

It is an arithmetic number, because the mean of its divisors is an integer number (2603380).

Almost surely, 2^99238725 is an apocalyptic number.

It is an amenable number.

99238725 is a deficient number, since it is larger than the sum of its proper divisors (88204635).

99238725 is a wasteful number, since it uses less digits than its factorization.

99238725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339 (or 331 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 99238725 is about 9961.8635304846. The cubic root of 99238725 is about 462.9780399376.

The spelling of 99238725 in words is "ninety-nine million, two hundred thirty-eight thousand, seven hundred twenty-five".