198674065 has 8 divisors (see below), whose sum is σ = 239788008. Its totient is φ = 158019840.

The previous prime is 198674059. The next prime is 198674083. The reversal of 198674065 is 560476891.

It can be written as a sum of positive squares in 4 ways, for example, as 84419344 + 114254721 = 9188^2 + 10689^2 .

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

It is not a de Polignac number, because 198674065 - 2²³ = 190285457 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113976 + ... + 115705.

It is an arithmetic number, because the mean of its divisors is an integer number (29973501).

Almost surely, 2^198674065 is an apocalyptic number.

It is an amenable number.

198674065 is a deficient number, since it is larger than the sum of its proper divisors (41113943).

198674065 is a wasteful number, since it uses less digits than its factorization.

198674065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229859.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 198674065 is about 14095.1787856699. The cubic root of 198674065 is about 583.5083286314.

It can be divided in two parts, 19867 and 4065, that added together give a palindrome (23932).

The spelling of 198674065 in words is "one hundred ninety-eight million, six hundred seventy-four thousand, sixty-five".