33660973 has 2 divisors, whose sum is σ = 33660974. Its totient is φ = 33660972.

The previous prime is 33660971. The next prime is 33660997. The reversal of 33660973 is 37906633.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22250089 + 11410884 = 4717^2 + 3378^2 .

It is a cyclic number.

It is not a de Polignac number, because 33660973 - 2¹ = 33660971 is a prime.

It is a super-2 number, since 2×33660973² = 2266122206613458, which contains 22 as substring.

Together with 33660971, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33660971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16830486 + 16830487.

It is an arithmetic number, because the mean of its divisors is an integer number (16830487).

Almost surely, 2^33660973 is an apocalyptic number.

It is an amenable number.

33660973 is a deficient number, since it is larger than the sum of its proper divisors (1).

33660973 is an equidigital number, since it uses as much as digits as its factorization.

33660973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61236, while the sum is 37.

The square root of 33660973 is about 5801.8077355252. The cubic root of 33660973 is about 322.8808009078.

The spelling of 33660973 in words is "thirty-three million, six hundred sixty thousand, nine hundred seventy-three".