33979769 has 8 divisors (see below), whose sum is σ = 34453320. Its totient is φ = 33509376.

The previous prime is 33979747. The next prime is 33979783. The reversal of 33979769 is 96797933.

It can be written as a sum of positive squares in 4 ways, for example, as 8779369 + 25200400 = 2963^2 + 5020^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33979769 is a prime.

It is a super-2 number, since 2×33979769² = 2309249402586722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 33979769.

It is not an unprimeable number, because it can be changed into a prime (33979969) 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, 27407 + ... + 28619.

It is an arithmetic number, because the mean of its divisors is an integer number (4306665).

Almost surely, 2^33979769 is an apocalyptic number.

It is an amenable number.

33979769 is a deficient number, since it is larger than the sum of its proper divisors (473551).

33979769 is a wasteful number, since it uses less digits than its factorization.

33979769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1579.

The product of its digits is 1928934, while the sum is 53.

The square root of 33979769 is about 5829.2168427671. The cubic root of 33979769 is about 323.8969119021.

It can be divided in two parts, 339 and 79769, that added together give a palindrome (80108).

The spelling of 33979769 in words is "thirty-three million, nine hundred seventy-nine thousand, seven hundred sixty-nine".