99542859 has 12 divisors (see below), whose sum is σ = 143719416. Its totient is φ = 61256832.

The previous prime is 99542857. The next prime is 99542869. The reversal of 99542859 is 95824599.

It is not a de Polignac number, because 99542859 - 2¹ = 99542857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99542857) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 97662 + ... + 98675.

It is an arithmetic number, because the mean of its divisors is an integer number (11976618).

Almost surely, 2^99542859 is an apocalyptic number.

99542859 is a deficient number, since it is larger than the sum of its proper divisors (44176557).

99542859 is a wasteful number, since it uses less digits than its factorization.

99542859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196366 (or 196353 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 51.

The square root of 99542859 is about 9977.1167678844. The cubic root of 99542859 is about 463.4505159960.

The spelling of 99542859 in words is "ninety-nine million, five hundred forty-two thousand, eight hundred fifty-nine".