99857204 has 6 divisors (see below), whose sum is σ = 174750114. Its totient is φ = 49928600.

The previous prime is 99857203. The next prime is 99857207. The reversal of 99857204 is 40275899.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 79245604 + 20611600 = 8902^2 + 4540^2 .

It is a super-2 number, since 2×99857204² = 19942922381395232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99857203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12482147 + ... + 12482154.

It is an arithmetic number, because the mean of its divisors is an integer number (29125019).

Almost surely, 2^99857204 is an apocalyptic number.

It is an amenable number.

99857204 is a deficient number, since it is larger than the sum of its proper divisors (74892910).

99857204 is a wasteful number, since it uses less digits than its factorization.

99857204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24964305 (or 24964303 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 99857204 is about 9992.8576493414. The cubic root of 99857204 is about 463.9378446767.

The spelling of 99857204 in words is "ninety-nine million, eight hundred fifty-seven thousand, two hundred four".