213089668 has 24 divisors (see below), whose sum is σ = 409550400. Its totient is φ = 96205920.

The previous prime is 213089633. The next prime is 213089677. The reversal of 213089668 is 866980312.

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, 9696 + ... + 22807.

It is an arithmetic number, because the mean of its divisors is an integer number (17064600).

Almost surely, 2^213089668 is an apocalyptic number.

It is an amenable number.

213089668 is a deficient number, since it is larger than the sum of its proper divisors (196460732).

213089668 is a wasteful number, since it uses less digits than its factorization.

213089668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32667 (or 32665 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 213089668 is about 14597.5911711488. The cubic root of 213089668 is about 597.2930539190.

It can be divided in two parts, 21308 and 9668, that added together give a square (30976 = 176²).

The spelling of 213089668 in words is "two hundred thirteen million, eighty-nine thousand, six hundred sixty-eight".