198867982 has 8 divisors (see below), whose sum is σ = 311271696. Its totient is φ = 95110752.

The previous prime is 198867979. The next prime is 198867997. The reversal of 198867982 is 289768891.

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, 2161563 + ... + 2161654.

It is an arithmetic number, because the mean of its divisors is an integer number (38908962).

Almost surely, 2^198867982 is an apocalyptic number.

198867982 is a deficient number, since it is larger than the sum of its proper divisors (112403714).

198867982 is a wasteful number, since it uses less digits than its factorization.

198867982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4323242.

The product of its digits is 3483648, while the sum is 58.

The square root of 198867982 is about 14102.0559493997. The cubic root of 198867982 is about 583.6981124870.

Subtracting 198867982 from its reverse (289768891), we obtain a palindrome (90900909).

The spelling of 198867982 in words is "one hundred ninety-eight million, eight hundred sixty-seven thousand, nine hundred eighty-two".