198613607 has 2 divisors, whose sum is σ = 198613608. Its totient is φ = 198613606.

The previous prime is 198613589. The next prime is 198613609. The reversal of 198613607 is 706316891.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 198613607 - 2¹² = 198609511 is a prime.

Together with 198613609, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (198613609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99306803 + 99306804.

It is an arithmetic number, because the mean of its divisors is an integer number (99306804).

Almost surely, 2^198613607 is an apocalyptic number.

198613607 is a deficient number, since it is larger than the sum of its proper divisors (1).

198613607 is an equidigital number, since it uses as much as digits as its factorization.

198613607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 198613607 is about 14093.0339884639. The cubic root of 198613607 is about 583.4491339808.

The spelling of 198613607 in words is "one hundred ninety-eight million, six hundred thirteen thousand, six hundred seven".