33956973 has 12 divisors (see below), whose sum is σ = 51934428. Its totient is φ = 21306240.

The previous prime is 33956969. The next prime is 33956981. The reversal of 33956973 is 37965933.

It can be written as a sum of positive squares in 2 ways, for example, as 31606884 + 2350089 = 5622^2 + 1533^2 .

It is not a de Polignac number, because 33956973 - 2² = 33956969 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33956953) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 110818 + ... + 111123.

It is an arithmetic number, because the mean of its divisors is an integer number (4327869).

Almost surely, 2^33956973 is an apocalyptic number.

It is an amenable number.

33956973 is a deficient number, since it is larger than the sum of its proper divisors (17977455).

33956973 is a wasteful number, since it uses less digits than its factorization.

33956973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221964 (or 221961 counting only the distinct ones).

The product of its digits is 459270, while the sum is 45.

The square root of 33956973 is about 5827.2611920181. The cubic root of 33956973 is about 323.8244648160.

The spelling of 33956973 in words is "thirty-three million, nine hundred fifty-six thousand, nine hundred seventy-three".