213889108 has 12 divisors (see below), whose sum is σ = 374518900. Its totient is φ = 106883712.

The previous prime is 213889063. The next prime is 213889111. The reversal of 213889108 is 801988312.

213889108 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 19342404 + 194546704 = 4398^2 + 13948^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6783 + ... + 21766.

Almost surely, 2^213889108 is an apocalyptic number.

It is an amenable number.

213889108 is a deficient number, since it is larger than the sum of its proper divisors (160629792).

213889108 is a wasteful number, since it uses less digits than its factorization.

213889108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30426 (or 30424 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 40.

The square root of 213889108 is about 14624.9481366602. The cubic root of 213889108 is about 598.0390685988.

The spelling of 213889108 in words is "two hundred thirteen million, eight hundred eighty-nine thousand, one hundred eight".