33689349 has 12 divisors (see below), whose sum is σ = 48933612. Its totient is φ = 22334400.

The previous prime is 33689333. The next prime is 33689353. The reversal of 33689349 is 94398633.

It can be written as a sum of positive squares in 2 ways, for example, as 1404225 + 32285124 = 1185^2 + 5682^2 .

It is not a de Polignac number, because 33689349 - 2⁴ = 33689333 is a prime.

It is a super-2 number, since 2×33689349² = 2269944472087602, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33689389) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8712 + ... + 11969.

It is an arithmetic number, because the mean of its divisors is an integer number (4077801).

Almost surely, 2^33689349 is an apocalyptic number.

It is an amenable number.

33689349 is a deficient number, since it is larger than the sum of its proper divisors (15244263).

33689349 is a wasteful number, since it uses less digits than its factorization.

33689349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20868 (or 20865 counting only the distinct ones).

The product of its digits is 419904, while the sum is 45.

The square root of 33689349 is about 5804.2526650724. The cubic root of 33689349 is about 322.9715042899.

The spelling of 33689349 in words is "thirty-three million, six hundred eighty-nine thousand, three hundred forty-nine".