33340789 has 2 divisors, whose sum is σ = 33340790. Its totient is φ = 33340788.

The previous prime is 33340759. The next prime is 33340793. The reversal of 33340789 is 98704333.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31472100 + 1868689 = 5610^2 + 1367^2 .

It is a cyclic number.

It is not a de Polignac number, because 33340789 - 2⁹ = 33340277 is a prime.

It is a super-2 number, since 2×33340789² = 2223216422285042, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33340729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16670394 + 16670395.

It is an arithmetic number, because the mean of its divisors is an integer number (16670395).

Almost surely, 2^33340789 is an apocalyptic number.

It is an amenable number.

33340789 is a deficient number, since it is larger than the sum of its proper divisors (1).

33340789 is an equidigital number, since it uses as much as digits as its factorization.

33340789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 33340789 is about 5774.1483354690. The cubic root of 33340789 is about 321.8537876366.

The spelling of 33340789 in words is "thirty-three million, three hundred forty thousand, seven hundred eighty-nine".