198783613 has 8 divisors (see below), whose sum is σ = 227431232. Its totient is φ = 170198496.

The previous prime is 198783593. The next prime is 198783619. The reversal of 198783613 is 316387891.

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

It is a cyclic number.

It is not a de Polignac number, because 198783613 - 2⁵ = 198783581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198783619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8595 + ... + 21712.

It is an arithmetic number, because the mean of its divisors is an integer number (28428904).

Almost surely, 2^198783613 is an apocalyptic number.

It is an amenable number.

198783613 is a deficient number, since it is larger than the sum of its proper divisors (28647619).

198783613 is an equidigital number, since it uses as much as digits as its factorization.

198783613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31251.

The product of its digits is 217728, while the sum is 46.

The square root of 198783613 is about 14099.0642597301. The cubic root of 198783613 is about 583.6155568952.

It can be divided in two parts, 198783 and 613, that added together give a triangular number (199396 = T₆₃₁).

The spelling of 198783613 in words is "one hundred ninety-eight million, seven hundred eighty-three thousand, six hundred thirteen".