33490211 has 2 divisors, whose sum is σ = 33490212. Its totient is φ = 33490210.

The previous prime is 33490207. The next prime is 33490213. The reversal of 33490211 is 11209433.

It is a strong prime.

It is an emirp because it is prime and its reverse (11209433) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33490211 - 2² = 33490207 is a prime.

It is a super-2 number, since 2×33490211² = 2243188465649042, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 33490213, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (33490213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16745105 + 16745106.

It is an arithmetic number, because the mean of its divisors is an integer number (16745106).

Almost surely, 2^33490211 is an apocalyptic number.

33490211 is a deficient number, since it is larger than the sum of its proper divisors (1).

33490211 is an equidigital number, since it uses as much as digits as its factorization.

33490211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 33490211 is about 5787.0727488083. The cubic root of 33490211 is about 322.3338839633. Note that the first 3 decimals are identical.

Adding to 33490211 its reverse (11209433), we get a palindrome (44699644).

The spelling of 33490211 in words is "thirty-three million, four hundred ninety thousand, two hundred eleven".