33214813 has 2 divisors, whose sum is σ = 33214814. Its totient is φ = 33214812.

The previous prime is 33214799. The next prime is 33214823. The reversal of 33214813 is 31841233.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20448484 + 12766329 = 4522^2 + 3573^2 .

It is a cyclic number.

It is not a de Polignac number, because 33214813 - 2¹⁷ = 33083741 is a prime.

It is a super-2 number, since 2×33214813² = 2206447605249938, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33214823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16607406 + 16607407.

It is an arithmetic number, because the mean of its divisors is an integer number (16607407).

Almost surely, 2^33214813 is an apocalyptic number.

It is an amenable number.

33214813 is a deficient number, since it is larger than the sum of its proper divisors (1).

33214813 is an equidigital number, since it uses as much as digits as its factorization.

33214813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 25.

The square root of 33214813 is about 5763.2293898473. The cubic root of 33214813 is about 321.4479081512.

The spelling of 33214813 in words is "thirty-three million, two hundred fourteen thousand, eight hundred thirteen".