33367421 has 2 divisors, whose sum is σ = 33367422. Its totient is φ = 33367420.

The previous prime is 33367393. The next prime is 33367423. The reversal of 33367421 is 12476333.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22934521 + 10432900 = 4789^2 + 3230^2 .

It is a cyclic number.

It is not a de Polignac number, because 33367421 - 2⁶ = 33367357 is a prime.

It is a super-2 number, since 2×33367421² = 2226769568382482, which contains 22 as substring.

Together with 33367423, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33367423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16683710 + 16683711.

It is an arithmetic number, because the mean of its divisors is an integer number (16683711).

Almost surely, 2^33367421 is an apocalyptic number.

It is an amenable number.

33367421 is a deficient number, since it is larger than the sum of its proper divisors (1).

33367421 is an equidigital number, since it uses as much as digits as its factorization.

33367421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 29.

The square root of 33367421 is about 5776.4540160898. The cubic root of 33367421 is about 321.9394617619.

The spelling of 33367421 in words is "thirty-three million, three hundred sixty-seven thousand, four hundred twenty-one".