33686073 has 12 divisors (see below), whose sum is σ = 48708400. Its totient is φ = 22433976.

The previous prime is 33686039. The next prime is 33686083. The reversal of 33686073 is 37068633.

It is not a de Polignac number, because 33686073 - 2¹⁶ = 33620537 is a prime.

It is a super-2 number, since 2×33686073² = 2269503028322658, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (33686033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14190 + ... + 16392.

Almost surely, 2^33686073 is an apocalyptic number.

It is an amenable number.

33686073 is a deficient number, since it is larger than the sum of its proper divisors (15022327).

33686073 is a wasteful number, since it uses less digits than its factorization.

33686073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3908 (or 3905 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 36.

The square root of 33686073 is about 5803.9704513376. The cubic root of 33686073 is about 322.9610352151.

The spelling of 33686073 in words is "thirty-three million, six hundred eighty-six thousand, seventy-three".