198037377 has 6 divisors (see below), whose sum is σ = 286054002. Its totient is φ = 132024912.

The previous prime is 198037321. The next prime is 198037381. The reversal of 198037377 is 773730891.

It can be written as a sum of positive squares in only one way, i.e., 181683441 + 16353936 = 13479^2 + 4044^2 .

It is not a de Polignac number, because 198037377 - 2⁷ = 198037249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (198037397) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11002068 + ... + 11002085.

It is an arithmetic number, because the mean of its divisors is an integer number (47675667).

Almost surely, 2^198037377 is an apocalyptic number.

It is an amenable number.

198037377 is a deficient number, since it is larger than the sum of its proper divisors (88016625).

198037377 is a wasteful number, since it uses less digits than its factorization.

198037377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22004159 (or 22004156 counting only the distinct ones).

The product of its (nonzero) digits is 222264, while the sum is 45.

The square root of 198037377 is about 14072.5753506599. The cubic root of 198037377 is about 582.8843412656.

The spelling of 198037377 in words is "one hundred ninety-eight million, thirty-seven thousand, three hundred seventy-seven".