198889862 has 8 divisors (see below), whose sum is σ = 307958592. Its totient is φ = 96237000.

The previous prime is 198889849. The next prime is 198889883. The reversal of 198889862 is 268988891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1603889 + ... + 1604012.

It is an arithmetic number, because the mean of its divisors is an integer number (38494824).

Almost surely, 2^198889862 is an apocalyptic number.

198889862 is a deficient number, since it is larger than the sum of its proper divisors (109068730).

198889862 is a wasteful number, since it uses less digits than its factorization.

198889862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3207934.

The product of its digits is 3981312, while the sum is 59.

The square root of 198889862 is about 14102.8317014705. The cubic root of 198889862 is about 583.7195183903.

The spelling of 198889862 in words is "one hundred ninety-eight million, eight hundred eighty-nine thousand, eight hundred sixty-two".