198882487 has 2 divisors, whose sum is σ = 198882488. Its totient is φ = 198882486.

The previous prime is 198882479. The next prime is 198882491. The reversal of 198882487 is 784288891.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 198882487 - 2³ = 198882479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (198882407) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99441243 + 99441244.

It is an arithmetic number, because the mean of its divisors is an integer number (99441244).

Almost surely, 2^198882487 is an apocalyptic number.

198882487 is a deficient number, since it is larger than the sum of its proper divisors (1).

198882487 is an equidigital number, since it uses as much as digits as its factorization.

198882487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2064384, while the sum is 55.

The square root of 198882487 is about 14102.5702267353. The cubic root of 198882487 is about 583.7123033675.

The spelling of 198882487 in words is "one hundred ninety-eight million, eight hundred eighty-two thousand, four hundred eighty-seven".