198975974 has 8 divisors (see below), whose sum is σ = 298527768. Its totient is φ = 99466720.

The previous prime is 198975971. The next prime is 198975979. The reversal of 198975974 is 479579891.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198975971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6734 + ... + 21054.

It is an arithmetic number, because the mean of its divisors is an integer number (37315971).

Almost surely, 2^198975974 is an apocalyptic number.

198975974 is a deficient number, since it is larger than the sum of its proper divisors (99551794).

198975974 is a wasteful number, since it uses less digits than its factorization.

198975974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21270.

The product of its digits is 5715360, while the sum is 59.

The square root of 198975974 is about 14105.8843749692. The cubic root of 198975974 is about 583.8037492674.

The spelling of 198975974 in words is "one hundred ninety-eight million, nine hundred seventy-five thousand, nine hundred seventy-four".