213663233 has 8 divisors (see below), whose sum is σ = 244416768. Its totient is φ = 182967264.

The previous prime is 213663223. The next prime is 213663239. The reversal of 213663233 is 332366312.

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 213663233 - 2¹⁰ = 213662209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213663196 and 213663205.

It is not an unprimeable number, because it can be changed into a prime (213663239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6116 + ... + 21557.

It is an arithmetic number, because the mean of its divisors is an integer number (30552096).

Almost surely, 2^213663233 is an apocalyptic number.

It is an amenable number.

213663233 is a deficient number, since it is larger than the sum of its proper divisors (30753535).

213663233 is a wasteful number, since it uses less digits than its factorization.

213663233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28783.

The product of its digits is 11664, while the sum is 29.

The square root of 213663233 is about 14617.2238472290. The cubic root of 213663233 is about 597.8284771474.

The spelling of 213663233 in words is "two hundred thirteen million, six hundred sixty-three thousand, two hundred thirty-three".