213803936 has 24 divisors (see below), whose sum is σ = 424795140. Its totient is φ = 105919488.

The previous prime is 213803927. The next prime is 213803939. The reversal of 213803936 is 639308312.

213803936 is digitally balanced in base 2, 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 213744400 + 59536 = 14620^2 + 244^2 .

It is a junction number, because it is equal to n+sod(n) for n = 213803896 and 213803905.

It is not an unprimeable number, because it can be changed into a prime (213803939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27161 + ... + 34136.

Almost surely, 2^213803936 is an apocalyptic number.

It is an amenable number.

213803936 is a deficient number, since it is larger than the sum of its proper divisors (210991204).

213803936 is a wasteful number, since it uses less digits than its factorization.

213803936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61416 (or 61408 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 213803936 is about 14622.0359731468. The cubic root of 213803936 is about 597.9596770759.

The spelling of 213803936 in words is "two hundred thirteen million, eight hundred three thousand, nine hundred thirty-six".