198479856 has 40 divisors (see below), whose sum is σ = 529283584. Its totient is φ = 64025280.

The previous prime is 198479851. The next prime is 198479899. The reversal of 198479856 is 658974891.

It is a junction number, because it is equal to n+sod(n) for n = 198479796 and 198479805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198479851) 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, 65206 + ... + 68181.

Almost surely, 2^198479856 is an apocalyptic number.

198479856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

198479856 is an abundant number, since it is smaller than the sum of its proper divisors (330803728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

198479856 is a wasteful number, since it uses less digits than its factorization.

198479856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133429 (or 133423 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 57.

The square root of 198479856 is about 14088.2879016579. The cubic root of 198479856 is about 583.3181351868.

The spelling of 198479856 in words is "one hundred ninety-eight million, four hundred seventy-nine thousand, eight hundred fifty-six".