33979 has 4 divisors (see below), whose sum is σ = 37080. Its totient is φ = 30880.

The previous prime is 33967. The next prime is 33997. The reversal of 33979 is 97933.

33979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 33979 - 2⁷ = 33851 is a prime.

It is a fibodiv number, since the Fibonacci-like sequence with seeds 33 and 979 contains 33979 itself.

It is a Duffinian number.

33979 is a lucky number.

It is a nialpdrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 33979.

It is not an unprimeable number, because it can be changed into a prime (33179) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1534 + ... + 1555.

It is an arithmetic number, because the mean of its divisors is an integer number (9270).

2³³⁹⁷⁹ is an apocalyptic number.

33979 is a deficient number, since it is larger than the sum of its proper divisors (3101).

33979 is a wasteful number, since it uses less digits than its factorization.

33979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3100.

The product of its digits is 5103, while the sum is 31.

The square root of 33979 is about 184.3339361051. Note that the first 3 decimals coincide. The cubic root of 33979 is about 32.3894468501.

The spelling of 33979 in words is "thirty-three thousand, nine hundred seventy-nine".