172630198 has 16 divisors (see below), whose sum is σ = 280412496. Its totient is φ = 79233120.

The previous prime is 172630177. The next prime is 172630207. The reversal of 172630198 is 891036271.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13636 + ... + 23047.

It is an arithmetic number, because the mean of its divisors is an integer number (17525781).

Almost surely, 2^172630198 is an apocalyptic number.

172630198 is a deficient number, since it is larger than the sum of its proper divisors (107782298).

172630198 is a wasteful number, since it uses less digits than its factorization.

172630198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36879.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 172630198 is about 13138.8811548016. The cubic root of 172630198 is about 556.8081578652.

The spelling of 172630198 in words is "one hundred seventy-two million, six hundred thirty thousand, one hundred ninety-eight".