198047877 has 16 divisors (see below), whose sum is σ = 269734080. Its totient is φ = 129226752.

The previous prime is 198047869. The next prime is 198047879. The reversal of 198047877 is 778740891.

It is not a de Polignac number, because 198047877 - 2³ = 198047869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198047879) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23493 + ... + 30789.

It is an arithmetic number, because the mean of its divisors is an integer number (16858380).

Almost surely, 2^198047877 is an apocalyptic number.

It is an amenable number.

198047877 is a deficient number, since it is larger than the sum of its proper divisors (71686203).

198047877 is a wasteful number, since it uses less digits than its factorization.

198047877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7492.

The product of its (nonzero) digits is 790272, while the sum is 51.

The square root of 198047877 is about 14072.9484117579. The cubic root of 198047877 is about 582.8946426500.

The spelling of 198047877 in words is "one hundred ninety-eight million, forty-seven thousand, eight hundred seventy-seven".