198927427 has 2 divisors, whose sum is σ = 198927428. Its totient is φ = 198927426.

The previous prime is 198927419. The next prime is 198927433. The reversal of 198927427 is 724729891.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 198927427 - 2³ = 198927419 is a prime.

It is not a weakly prime, because it can be changed into another prime (198927467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99463713 + 99463714.

It is an arithmetic number, because the mean of its divisors is an integer number (99463714).

Almost surely, 2^198927427 is an apocalyptic number.

198927427 is a deficient number, since it is larger than the sum of its proper divisors (1).

198927427 is an equidigital number, since it uses as much as digits as its factorization.

198927427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 508032, while the sum is 49.

The square root of 198927427 is about 14104.1634633182. The cubic root of 198927427 is about 583.7562657692.

The spelling of 198927427 in words is "one hundred ninety-eight million, nine hundred twenty-seven thousand, four hundred twenty-seven".