213606933 has 8 divisors (see below), whose sum is σ = 289478496. Its totient is φ = 140070000.

The previous prime is 213606893. The next prime is 213606947. The reversal of 213606933 is 339606312.

213606933 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 213606933 - 2¹⁴ = 213590549 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 213606894 and 213606903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213616933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 583443 + ... + 583808.

It is an arithmetic number, because the mean of its divisors is an integer number (36184812).

Almost surely, 2^213606933 is an apocalyptic number.

It is an amenable number.

213606933 is a deficient number, since it is larger than the sum of its proper divisors (75871563).

213606933 is a wasteful number, since it uses less digits than its factorization.

213606933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1167315.

The product of its (nonzero) digits is 17496, while the sum is 33.

The square root of 213606933 is about 14615.2979100667. The cubic root of 213606933 is about 597.7759635110.

The spelling of 213606933 in words is "two hundred thirteen million, six hundred six thousand, nine hundred thirty-three".