198907963 has 2 divisors, whose sum is σ = 198907964. Its totient is φ = 198907962.

The previous prime is 198907931. The next prime is 198908009. The reversal of 198907963 is 369709891.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 198907963 - 2⁵ = 198907931 is a prime.

It is a super-3 number, since 3×198907963³ (a number of 26 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 198907963.

It is not a weakly prime, because it can be changed into another prime (198907913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99453981 + 99453982.

It is an arithmetic number, because the mean of its divisors is an integer number (99453982).

Almost surely, 2^198907963 is an apocalyptic number.

198907963 is a deficient number, since it is larger than the sum of its proper divisors (1).

198907963 is an equidigital number, since it uses as much as digits as its factorization.

198907963 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 734832, while the sum is 52.

The square root of 198907963 is about 14103.4734374196. The cubic root of 198907963 is about 583.7372259905.

The spelling of 198907963 in words is "one hundred ninety-eight million, nine hundred seven thousand, nine hundred sixty-three".