198902419 has 2 divisors, whose sum is σ = 198902420. Its totient is φ = 198902418.

The previous prime is 198902401. The next prime is 198902461. The reversal of 198902419 is 914209891.

It is a happy number.

198902419 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 198902419 - 2²³ = 190513811 is a prime.

It is a super-2 number, since 2×198902419² = 79124344568103122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (198902719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99451209 + 99451210.

It is an arithmetic number, because the mean of its divisors is an integer number (99451210).

Almost surely, 2^198902419 is an apocalyptic number.

198902419 is a deficient number, since it is larger than the sum of its proper divisors (1).

198902419 is an equidigital number, since it uses as much as digits as its factorization.

198902419 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 43.

The square root of 198902419 is about 14103.2768887234. The cubic root of 198902419 is about 583.7318025957.

The spelling of 198902419 in words is "one hundred ninety-eight million, nine hundred two thousand, four hundred nineteen".