198940713 has 8 divisors (see below), whose sum is σ = 267733728. Its totient is φ = 131387424.

The previous prime is 198940711. The next prime is 198940727. The reversal of 198940713 is 317049891.

It is a happy number.

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

It is not a de Polignac number, because 198940713 - 2¹ = 198940711 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (198940711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 309556 + ... + 310197.

It is an arithmetic number, because the mean of its divisors is an integer number (33466716).

Almost surely, 2^198940713 is an apocalyptic number.

It is an amenable number.

198940713 is a deficient number, since it is larger than the sum of its proper divisors (68793015).

198940713 is a wasteful number, since it uses less digits than its factorization.

198940713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619863.

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 198940713 is about 14104.6344511299. The cubic root of 198940713 is about 583.7692614853.

The spelling of 198940713 in words is "one hundred ninety-eight million, nine hundred forty thousand, seven hundred thirteen".