213887198 has 16 divisors (see below), whose sum is σ = 367524864. Its totient is φ = 91450680.

The previous prime is 213887173. The next prime is 213887221. The reversal of 213887198 is 891788312.

213887198 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 11690 + ... + 23757.

It is an arithmetic number, because the mean of its divisors is an integer number (22970304).

Almost surely, 2^213887198 is an apocalyptic number.

213887198 is a deficient number, since it is larger than the sum of its proper divisors (153637666).

213887198 is a wasteful number, since it uses less digits than its factorization.

213887198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35887.

The product of its digits is 193536, while the sum is 47.

The square root of 213887198 is about 14624.8828371375. The cubic root of 213887198 is about 598.0372884583.

The spelling of 213887198 in words is "two hundred thirteen million, eight hundred eighty-seven thousand, one hundred ninety-eight".