213900688 has 10 divisors (see below), whose sum is σ = 414432614. Its totient is φ = 106950336.

The previous prime is 213900683. The next prime is 213900691. The reversal of 213900688 is 886009312.

It can be written as a sum of positive squares in only one way, i.e., 212343184 + 1557504 = 14572^2 + 1248^2 .

It is not an unprimeable number, because it can be changed into a prime (213900683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6684381 + ... + 6684412.

Almost surely, 2^213900688 is an apocalyptic number.

It is an amenable number.

213900688 is a deficient number, since it is larger than the sum of its proper divisors (200531926).

213900688 is a wasteful number, since it uses less digits than its factorization.

213900688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13368801 (or 13368795 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 213900688 is about 14625.3440301416. The cubic root of 213900688 is about 598.0498610565.

The spelling of 213900688 in words is "two hundred thirteen million, nine hundred thousand, six hundred eighty-eight".