198976 has 14 divisors (see below), whose sum is σ = 394970. Its totient is φ = 99456.

The previous prime is 198971. The next prime is 198977. The reversal of 198976 is 679891.

It can be written as a sum of positive squares in only one way, i.e., 141376 + 57600 = 376^2 + 240^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1491 + ... + 1618.

2¹⁹⁸⁹⁷⁶ is an apocalyptic number.

198976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

198976 is a deficient number, since it is larger than the sum of its proper divisors (195994).

198976 is an equidigital number, since it uses as much as digits as its factorization.

198976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3121 (or 3111 counting only the distinct ones).

The product of its digits is 27216, while the sum is 40.

The square root of 198976 is about 446.0672595024. The cubic root of 198976 is about 58.3803774696.

The spelling of 198976 in words is "one hundred ninety-eight thousand, nine hundred seventy-six".