198637214 has 24 divisors (see below), whose sum is σ = 317899728. Its totient is φ = 93067520.

The previous prime is 198637207. The next prime is 198637217. The reversal of 198637214 is 412736891.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198637217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 161807 + ... + 163029.

It is an arithmetic number, because the mean of its divisors is an integer number (13245822).

Almost surely, 2^198637214 is an apocalyptic number.

198637214 is a deficient number, since it is larger than the sum of its proper divisors (119262514).

198637214 is a wasteful number, since it uses less digits than its factorization.

198637214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1540 (or 1523 counting only the distinct ones).

The product of its digits is 72576, while the sum is 41.

The square root of 198637214 is about 14093.8715050195. The cubic root of 198637214 is about 583.4722491108.

The spelling of 198637214 in words is "one hundred ninety-eight million, six hundred thirty-seven thousand, two hundred fourteen".