198628595 has 16 divisors (see below), whose sum is σ = 275319648. Its totient is φ = 135959040.

The previous prime is 198628589. The next prime is 198628607. The reversal of 198628595 is 595826891.

It is not a de Polignac number, because 198628595 - 2⁴ = 198628579 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105284 + ... + 107153.

It is an arithmetic number, because the mean of its divisors is an integer number (17207478).

Almost surely, 2^198628595 is an apocalyptic number.

198628595 is a deficient number, since it is larger than the sum of its proper divisors (76691053).

198628595 is a wasteful number, since it uses less digits than its factorization.

198628595 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212470.

The product of its digits is 1555200, while the sum is 53.

The square root of 198628595 is about 14093.5657305027. The cubic root of 198628595 is about 583.4638099066.

The spelling of 198628595 in words is "one hundred ninety-eight million, six hundred twenty-eight thousand, five hundred ninety-five".