33083213 has 2 divisors, whose sum is σ = 33083214. Its totient is φ = 33083212.

The previous prime is 33083209. The next prime is 33083221. The reversal of 33083213 is 31238033.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19518724 + 13564489 = 4418^2 + 3683^2 .

It is a cyclic number.

It is not a de Polignac number, because 33083213 - 2² = 33083209 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33083203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16541606 + 16541607.

It is an arithmetic number, because the mean of its divisors is an integer number (16541607).

Almost surely, 2^33083213 is an apocalyptic number.

It is an amenable number.

33083213 is a deficient number, since it is larger than the sum of its proper divisors (1).

33083213 is an equidigital number, since it uses as much as digits as its factorization.

33083213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 33083213 is about 5751.8008484300. The cubic root of 33083213 is about 321.0228113045.

The spelling of 33083213 in words is "thirty-three million, eighty-three thousand, two hundred thirteen".