213933 has 8 divisors (see below), whose sum is σ = 295200. Its totient is φ = 137648.

The previous prime is 213929. The next prime is 213943. The reversal of 213933 is 339312.

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

It is a cyclic number.

It is not a de Polignac number, because 213933 - 2² = 213929 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213943) 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, 1143 + ... + 1316.

It is an arithmetic number, because the mean of its divisors is an integer number (36900).

2²¹³⁹³³ is an apocalyptic number.

It is an amenable number.

213933 is a deficient number, since it is larger than the sum of its proper divisors (81267).

213933 is a wasteful number, since it uses less digits than its factorization.

213933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2491.

The product of its digits is 486, while the sum is 21.

The square root of 213933 is about 462.5289180149. The cubic root of 213933 is about 59.8079973495.

The spelling of 213933 in words is "two hundred thirteen thousand, nine hundred thirty-three".