198979496 has 8 divisors (see below), whose sum is σ = 373086570. Its totient is φ = 99489744.

The previous prime is 198979493. The next prime is 198979507. The reversal of 198979496 is 694979891.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 116424100 + 82555396 = 10790^2 + 9086^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (198979493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12436211 + ... + 12436226.

Almost surely, 2^198979496 is an apocalyptic number.

It is an amenable number.

198979496 is a deficient number, since it is larger than the sum of its proper divisors (174107074).

198979496 is a wasteful number, since it uses less digits than its factorization.

198979496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24872443 (or 24872439 counting only the distinct ones).

The product of its digits is 8817984, while the sum is 62.

The square root of 198979496 is about 14106.0092159335. The cubic root of 198979496 is about 583.8071938117.

The spelling of 198979496 in words is "one hundred ninety-eight million, nine hundred seventy-nine thousand, four hundred ninety-six".