198970598 has 4 divisors (see below), whose sum is σ = 298455900. Its totient is φ = 99485298.

The previous prime is 198970573. The next prime is 198970619. The reversal of 198970598 is 895079891.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49742648 + ... + 49742651.

It is an arithmetic number, because the mean of its divisors is an integer number (74613975).

Almost surely, 2^198970598 is an apocalyptic number.

198970598 is a deficient number, since it is larger than the sum of its proper divisors (99485302).

198970598 is an equidigital number, since it uses as much as digits as its factorization.

198970598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99485301.

The product of its (nonzero) digits is 1632960, while the sum is 56.

The square root of 198970598 is about 14105.6938149103. The cubic root of 198970598 is about 583.7984914178.

The spelling of 198970598 in words is "one hundred ninety-eight million, nine hundred seventy thousand, five hundred ninety-eight".