198768933 has 12 divisors (see below), whose sum is σ = 313211808. Its totient is φ = 120465960.

The previous prime is 198768917. The next prime is 198768949. The reversal of 198768933 is 339867891.

It is an interprime number because it is at equal distance from previous prime (198768917) and next prime (198768949).

It is not a de Polignac number, because 198768933 - 2⁴ = 198768917 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 198768933.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198768133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1003785 + ... + 1003982.

It is an arithmetic number, because the mean of its divisors is an integer number (26100984).

Almost surely, 2^198768933 is an apocalyptic number.

It is an amenable number.

198768933 is a deficient number, since it is larger than the sum of its proper divisors (114442875).

198768933 is a wasteful number, since it uses less digits than its factorization.

198768933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2007784 (or 2007781 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 54.

The square root of 198768933 is about 14098.5436481929. The cubic root of 198768933 is about 583.6011900381.

The spelling of 198768933 in words is "one hundred ninety-eight million, seven hundred sixty-eight thousand, nine hundred thirty-three".