17045947 has 2 divisors, whose sum is σ = 17045948. Its totient is φ = 17045946.

The previous prime is 17045929. The next prime is 17045971. The reversal of 17045947 is 74954071.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-17045947 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (17045927) 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, 8522973 + 8522974.

It is an arithmetic number, because the mean of its divisors is an integer number (8522974).

Almost surely, 2^17045947 is an apocalyptic number.

17045947 is a deficient number, since it is larger than the sum of its proper divisors (1).

17045947 is an equidigital number, since it uses as much as digits as its factorization.

17045947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 17045947 is about 4128.6737580003. The cubic root of 17045947 is about 257.3596029825.

The spelling of 17045947 in words is "seventeen million, forty-five thousand, nine hundred forty-seven".