33696729 has 40 divisors (see below), whose sum is σ = 55931040. Its totient is φ = 20044800.

The previous prime is 33696701. The next prime is 33696763. The reversal of 33696729 is 92769633.

It is not a de Polignac number, because 33696729 - 2¹¹ = 33694681 is a prime.

It is a super-2 number, since 2×33696729² = 2270939090598882, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33696799) 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 39 ways as a sum of consecutive naturals, for example, 52249 + ... + 52889.

It is an arithmetic number, because the mean of its divisors is an integer number (1398276).

Almost surely, 2^33696729 is an apocalyptic number.

It is an amenable number.

33696729 is a deficient number, since it is larger than the sum of its proper divisors (22234311).

33696729 is a wasteful number, since it uses less digits than its factorization.

33696729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723 (or 714 counting only the distinct ones).

The product of its digits is 367416, while the sum is 45.

The square root of 33696729 is about 5804.8883710197. Note that the first 3 decimals coincide. The cubic root of 33696729 is about 322.9950859831.

The spelling of 33696729 in words is "thirty-three million, six hundred ninety-six thousand, seven hundred twenty-nine".