198970633 has 2 divisors, whose sum is σ = 198970634. Its totient is φ = 198970632.

The previous prime is 198970627. The next prime is 198970649. The reversal of 198970633 is 336079891.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 192432384 + 6538249 = 13872^2 + 2557^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-198970633 is a prime.

It is not a weakly prime, because it can be changed into another prime (198940633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99485316 + 99485317.

It is an arithmetic number, because the mean of its divisors is an integer number (99485317).

Almost surely, 2^198970633 is an apocalyptic number.

It is an amenable number.

198970633 is a deficient number, since it is larger than the sum of its proper divisors (1).

198970633 is an equidigital number, since it uses as much as digits as its factorization.

198970633 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 244944, while the sum is 46.

The square root of 198970633 is about 14105.6950555441. The cubic root of 198970633 is about 583.7985256489.

The spelling of 198970633 in words is "one hundred ninety-eight million, nine hundred seventy thousand, six hundred thirty-three".