199820875 has 32 divisors (see below), whose sum is σ = 260208000. Its totient is φ = 153014400.

The previous prime is 199820869. The next prime is 199820893. The reversal of 199820875 is 578028991.

199820875 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 199820875 - 2²⁷ = 65603147 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 721237 + ... + 721513.

It is an arithmetic number, because the mean of its divisors is an integer number (8131500).

Almost surely, 2^199820875 is an apocalyptic number.

199820875 is the 11542-nd pentagonal number.

199820875 is a deficient number, since it is larger than the sum of its proper divisors (60387125).

199820875 is a wasteful number, since it uses less digits than its factorization.

199820875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520 (or 510 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 49.

The square root of 199820875 is about 14135.8011799827. The cubic root of 199820875 is about 584.6289072690.

The spelling of 199820875 in words is "one hundred ninety-nine million, eight hundred twenty thousand, eight hundred seventy-five".