198269933 has 2 divisors, whose sum is σ = 198269934. Its totient is φ = 198269932.

The previous prime is 198269927. The next prime is 198269983. The reversal of 198269933 is 339962891.

It is an a-pointer prime, because the next prime (198269983) can be obtained adding 198269933 to its sum of digits (50).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 169572484 + 28697449 = 13022^2 + 5357^2 .

It is a cyclic number.

It is not a de Polignac number, because 198269933 - 2⁴ = 198269917 is a prime.

It is a super-4 number, since 4×198269933⁴ (a number of 34 digits) contains 4444 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (198269983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99134966 + 99134967.

It is an arithmetic number, because the mean of its divisors is an integer number (99134967).

Almost surely, 2^198269933 is an apocalyptic number.

It is an amenable number.

198269933 is a deficient number, since it is larger than the sum of its proper divisors (1).

198269933 is an equidigital number, since it uses as much as digits as its factorization.

198269933 is an evil number, because the sum of its binary digits is even.

The product of its digits is 629856, while the sum is 50.

The square root of 198269933 is about 14080.8356641216. The cubic root of 198269933 is about 583.1124130692.

The spelling of 198269933 in words is "one hundred ninety-eight million, two hundred sixty-nine thousand, nine hundred thirty-three".