33890413 has 2 divisors, whose sum is σ = 33890414. Its totient is φ = 33890412.

The previous prime is 33890411. The next prime is 33890453. The reversal of 33890413 is 31409833.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32285124 + 1605289 = 5682^2 + 1267^2 .

It is a cyclic number.

It is not a de Polignac number, because 33890413 - 2¹ = 33890411 is a prime.

It is a super-2 number, since 2×33890413² = 2297120186621138, which contains 22 as substring.

Together with 33890411, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33890411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16945206 + 16945207.

It is an arithmetic number, because the mean of its divisors is an integer number (16945207).

Almost surely, 2^33890413 is an apocalyptic number.

It is an amenable number.

33890413 is a deficient number, since it is larger than the sum of its proper divisors (1).

33890413 is an equidigital number, since it uses as much as digits as its factorization.

33890413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 33890413 is about 5821.5473029084. The cubic root of 33890413 is about 323.6127473342.

The spelling of 33890413 in words is "thirty-three million, eight hundred ninety thousand, four hundred thirteen".