198772893 has 32 divisors (see below), whose sum is σ = 322243200. Its totient is φ = 120096000.

The previous prime is 198772883. The next prime is 198772909. The reversal of 198772893 is 398277891.

198772893 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 198772893 - 2¹² = 198768797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198772883) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 118263 + ... + 119931.

It is an arithmetic number, because the mean of its divisors is an integer number (10070100).

Almost surely, 2^198772893 is an apocalyptic number.

It is an amenable number.

198772893 is a deficient number, since it is larger than the sum of its proper divisors (123470307).

198772893 is a wasteful number, since it uses less digits than its factorization.

198772893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2090 (or 2084 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 54.

The square root of 198772893 is about 14098.6840875310. The cubic root of 198772893 is about 583.6050656360.

The spelling of 198772893 in words is "one hundred ninety-eight million, seven hundred seventy-two thousand, eight hundred ninety-three".