33973091 has 2 divisors, whose sum is σ = 33973092. Its totient is φ = 33973090.

The previous prime is 33973033. The next prime is 33973097. The reversal of 33973091 is 19037933.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33973091 is a prime.

It is not a weakly prime, because it can be changed into another prime (33973097) 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, 16986545 + 16986546.

It is an arithmetic number, because the mean of its divisors is an integer number (16986546).

Almost surely, 2^33973091 is an apocalyptic number.

33973091 is a deficient number, since it is larger than the sum of its proper divisors (1).

33973091 is an equidigital number, since it uses as much as digits as its factorization.

33973091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15309, while the sum is 35.

The square root of 33973091 is about 5828.6440104024. The cubic root of 33973091 is about 323.8756921650.

The spelling of 33973091 in words is "thirty-three million, nine hundred seventy-three thousand, ninety-one".