33979973 has 8 divisors (see below), whose sum is σ = 34594392. Its totient is φ = 33371136.

The previous prime is 33979969. The next prime is 33979997. The reversal of 33979973 is 37997933.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4571044 + 29408929 = 2138^2 + 5423^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 33979973 - 2² = 33979969 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33979903) 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, 12011 + ... + 14567.

It is an arithmetic number, because the mean of its divisors is an integer number (4324299).

Almost surely, 2^33979973 is an apocalyptic number.

It is an amenable number.

33979973 is a deficient number, since it is larger than the sum of its proper divisors (614419).

33979973 is a wasteful number, since it uses less digits than its factorization.

33979973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2791.

The product of its digits is 964467, while the sum is 50.

The square root of 33979973 is about 5829.2343408033. The cubic root of 33979973 is about 323.8975600803.

The spelling of 33979973 in words is "thirty-three million, nine hundred seventy-nine thousand, nine hundred seventy-three".