33764749 has 2 divisors, whose sum is σ = 33764750. Its totient is φ = 33764748.

The previous prime is 33764747. The next prime is 33764779. The reversal of 33764749 is 94746733.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33756100 + 8649 = 5810^2 + 93^2 .

It is a cyclic number.

It is not a de Polignac number, because 33764749 - 2¹ = 33764747 is a prime.

It is a super-2 number, since 2×33764749² = 2280116550066002, which contains 22 as substring.

Together with 33764747, 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 (33764743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16882374 + 16882375.

It is an arithmetic number, because the mean of its divisors is an integer number (16882375).

Almost surely, 2^33764749 is an apocalyptic number.

It is an amenable number.

33764749 is a deficient number, since it is larger than the sum of its proper divisors (1).

33764749 is an equidigital number, since it uses as much as digits as its factorization.

33764749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 381024, while the sum is 43.

The square root of 33764749 is about 5810.7442724663. The cubic root of 33764749 is about 323.2122718450.

The spelling of 33764749 in words is "thirty-three million, seven hundred sixty-four thousand, seven hundred forty-nine".