198276379 has 4 divisors (see below), whose sum is σ = 226601584. Its totient is φ = 169951176.

The previous prime is 198276371. The next prime is 198276391. The reversal of 198276379 is 973672891.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 198276379 - 2³ = 198276371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198276371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14162592 + ... + 14162605.

It is an arithmetic number, because the mean of its divisors is an integer number (56650396).

Almost surely, 2^198276379 is an apocalyptic number.

198276379 is a deficient number, since it is larger than the sum of its proper divisors (28325205).

198276379 is an equidigital number, since it uses as much as digits as its factorization.

198276379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28325204.

The product of its digits is 1143072, while the sum is 52.

The square root of 198276379 is about 14081.0645549262. The cubic root of 198276379 is about 583.1187322352.

The spelling of 198276379 in words is "one hundred ninety-eight million, two hundred seventy-six thousand, three hundred seventy-nine".