33649493 has 2 divisors, whose sum is σ = 33649494. Its totient is φ = 33649492.

The previous prime is 33649453. The next prime is 33649501. The reversal of 33649493 is 39494633.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32741284 + 908209 = 5722^2 + 953^2 .

It is a cyclic number.

It is not a de Polignac number, because 33649493 - 2¹⁰ = 33648469 is a prime.

It is a super-2 number, since 2×33649493² = 2264576758314098, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33649493.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33649403) 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, 16824746 + 16824747.

It is an arithmetic number, because the mean of its divisors is an integer number (16824747).

Almost surely, 2^33649493 is an apocalyptic number.

It is an amenable number.

33649493 is a deficient number, since it is larger than the sum of its proper divisors (1).

33649493 is an equidigital number, since it uses as much as digits as its factorization.

33649493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 209952, while the sum is 41.

The square root of 33649493 is about 5800.8183043429. The cubic root of 33649493 is about 322.8440908078.

The spelling of 33649493 in words is "thirty-three million, six hundred forty-nine thousand, four hundred ninety-three".