198878792 has 32 divisors (see below), whose sum is σ = 444700800. Its totient is φ = 81527424.

The previous prime is 198878753. The next prime is 198878851. The reversal of 198878792 is 297878891.

198878792 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75917 + ... + 78492.

It is an arithmetic number, because the mean of its divisors is an integer number (13896900).

Almost surely, 2^198878792 is an apocalyptic number.

It is an amenable number.

198878792 is an abundant number, since it is smaller than the sum of its proper divisors (245822008).

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

198878792 is a wasteful number, since it uses less digits than its factorization.

198878792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154445 (or 154441 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 59.

The square root of 198878792 is about 14102.4392216382. The cubic root of 198878792 is about 583.7086884517.

Subtracting 198878792 from its reverse (297878891), we obtain a palindrome (99000099).

The spelling of 198878792 in words is "one hundred ninety-eight million, eight hundred seventy-eight thousand, seven hundred ninety-two".