198980277 has 8 divisors (see below), whose sum is σ = 266316864. Its totient is φ = 132148608.

The previous prime is 198980267. The next prime is 198980279. The reversal of 198980277 is 772089891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 198980277 - 2⁶ = 198980213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198980279) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125308 + ... + 126885.

It is an arithmetic number, because the mean of its divisors is an integer number (33289608).

Almost surely, 2^198980277 is an apocalyptic number.

It is an amenable number.

198980277 is a deficient number, since it is larger than the sum of its proper divisors (67336587).

198980277 is a wasteful number, since it uses less digits than its factorization.

198980277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252459.

The product of its (nonzero) digits is 508032, while the sum is 51.

The square root of 198980277 is about 14106.0368991436. The cubic root of 198980277 is about 583.8079576305.

The spelling of 198980277 in words is "one hundred ninety-eight million, nine hundred eighty thousand, two hundred seventy-seven".