33974947 has 2 divisors, whose sum is σ = 33974948. Its totient is φ = 33974946.

The previous prime is 33974939. The next prime is 33974953. The reversal of 33974947 is 74947933.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 33974947 - 2³ = 33974939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 33974897 and 33974906.

It is not a weakly prime, because it can be changed into another prime (33971947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16987473 + 16987474.

It is an arithmetic number, because the mean of its divisors is an integer number (16987474).

Almost surely, 2^33974947 is an apocalyptic number.

33974947 is a deficient number, since it is larger than the sum of its proper divisors (1).

33974947 is an equidigital number, since it uses as much as digits as its factorization.

33974947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 571536, while the sum is 46.

The square root of 33974947 is about 5828.8032219316. The cubic root of 33974947 is about 323.8815899930.

The spelling of 33974947 in words is "thirty-three million, nine hundred seventy-four thousand, nine hundred forty-seven".