33133979 has 8 divisors (see below), whose sum is σ = 34790160. Its totient is φ = 31512096.

The previous prime is 33133949. The next prime is 33133993. The reversal of 33133979 is 97933133.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 33133979 - 2¹⁶ = 33068443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33133949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6584 + ... + 10469.

It is an arithmetic number, because the mean of its divisors is an integer number (4348770).

Almost surely, 2^33133979 is an apocalyptic number.

33133979 is a deficient number, since it is larger than the sum of its proper divisors (1656181).

33133979 is a wasteful number, since it uses less digits than its factorization.

33133979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17149.

The product of its digits is 45927, while the sum is 38.

The square root of 33133979 is about 5756.2122094308. The cubic root of 33133979 is about 321.1869299391.

The spelling of 33133979 in words is "thirty-three million, one hundred thirty-three thousand, nine hundred seventy-nine".