33866973 has 24 divisors (see below), whose sum is σ = 57714176. Its totient is φ = 18727200.

The previous prime is 33866969. The next prime is 33866981. The reversal of 33866973 is 37966833.

It is a happy number.

It is not a de Polignac number, because 33866973 - 2² = 33866969 is a prime.

It is a super-3 number, since 3×33866973³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33866923) 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 in 23 ways as a sum of consecutive naturals, for example, 6718 + ... + 10623.

Almost surely, 2^33866973 is an apocalyptic number.

It is an amenable number.

33866973 is a deficient number, since it is larger than the sum of its proper divisors (23847203).

33866973 is a wasteful number, since it uses less digits than its factorization.

33866973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17385 (or 17382 counting only the distinct ones).

The product of its digits is 489888, while the sum is 45.

The square root of 33866973 is about 5819.5337442101. The cubic root of 33866973 is about 323.5381221761.

The spelling of 33866973 in words is "thirty-three million, eight hundred sixty-six thousand, nine hundred seventy-three".