33708913 has 12 divisors (see below), whose sum is σ = 39599040. Its totient is φ = 28608552.

The previous prime is 33708893. The next prime is 33708937. The reversal of 33708913 is 31980733.

It is not a de Polignac number, because 33708913 - 2⁵ = 33708881 is a prime.

It is a super-2 number, since 2×33708913² = 2272581631283138, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33708953) 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 11 ways as a sum of consecutive naturals, for example, 1708 + ... + 8386.

It is an arithmetic number, because the mean of its divisors is an integer number (3299920).

Almost surely, 2^33708913 is an apocalyptic number.

It is an amenable number.

33708913 is a deficient number, since it is larger than the sum of its proper divisors (5890127).

33708913 is a wasteful number, since it uses less digits than its factorization.

33708913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6796 (or 6789 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 33708913 is about 5805.9377364901. The cubic root of 33708913 is about 323.0340106110.

The spelling of 33708913 in words is "thirty-three million, seven hundred eight thousand, nine hundred thirteen".