198964067 has 12 divisors (see below), whose sum is σ = 213969600. Its totient is φ = 184918032.

The previous prime is 198964063. The next prime is 198964079. The reversal of 198964067 is 760469891.

It is not a de Polignac number, because 198964067 - 2² = 198964063 is a prime.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198964063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13934 + ... + 24332.

It is an arithmetic number, because the mean of its divisors is an integer number (17830800).

Almost surely, 2^198964067 is an apocalyptic number.

198964067 is a deficient number, since it is larger than the sum of its proper divisors (15005533).

198964067 is a wasteful number, since it uses less digits than its factorization.

198964067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10490 (or 10471 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 50.

The square root of 198964067 is about 14105.4623107504. The cubic root of 198964067 is about 583.7921038247.

The spelling of 198964067 in words is "one hundred ninety-eight million, nine hundred sixty-four thousand, sixty-seven".