99857875 has 48 divisors (see below), whose sum is σ = 140456160. Its totient is φ = 70761600.

The previous prime is 99857873. The next prime is 99857887. The reversal of 99857875 is 57875899.

It is not a de Polignac number, because 99857875 - 2¹ = 99857873 is a prime.

Its product of digits (6350400) is a multiple of the sum of its prime divisors (210).

It is not an unprimeable number, because it can be changed into a prime (99857873) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 612544 + ... + 612706.

It is an arithmetic number, because the mean of its divisors is an integer number (2926170).

Almost surely, 2^99857875 is an apocalyptic number.

99857875 is a deficient number, since it is larger than the sum of its proper divisors (40598285).

99857875 is a wasteful number, since it uses less digits than its factorization.

99857875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233 (or 210 counting only the distinct ones).

The product of its digits is 6350400, while the sum is 58.

The square root of 99857875 is about 9992.8912232647. The cubic root of 99857875 is about 463.9388838326.

The spelling of 99857875 in words is "ninety-nine million, eight hundred fifty-seven thousand, eight hundred seventy-five".