198807164 has 6 divisors (see below), whose sum is σ = 347912544. Its totient is φ = 99403580.

The previous prime is 198807149. The next prime is 198807173. The reversal of 198807164 is 461708891.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24850892 + ... + 24850899.

It is an arithmetic number, because the mean of its divisors is an integer number (57985424).

Almost surely, 2^198807164 is an apocalyptic number.

It is an amenable number.

198807164 is a deficient number, since it is larger than the sum of its proper divisors (149105380).

198807164 is a wasteful number, since it uses less digits than its factorization.

198807164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49701795 (or 49701793 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 44.

The square root of 198807164 is about 14099.8994322655. The cubic root of 198807164 is about 583.6386040452.

The spelling of 198807164 in words is "one hundred ninety-eight million, eight hundred seven thousand, one hundred sixty-four".