16974589 has 2 divisors, whose sum is σ = 16974590. Its totient is φ = 16974588.

The previous prime is 16974569. The next prime is 16974611. The reversal of 16974589 is 98547961.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14822500 + 2152089 = 3850^2 + 1467^2 .

It is a cyclic number.

It is not a de Polignac number, because 16974589 - 2¹¹ = 16972541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16974539) 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, 8487294 + 8487295.

It is an arithmetic number, because the mean of its divisors is an integer number (8487295).

Almost surely, 2^16974589 is an apocalyptic number.

It is an amenable number.

16974589 is a deficient number, since it is larger than the sum of its proper divisors (1).

16974589 is an equidigital number, since it uses as much as digits as its factorization.

16974589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 49.

The square root of 16974589 is about 4120.0229368294. The cubic root of 16974589 is about 256.9999798130. Note that the first 4 decimals are identical.

The spelling of 16974589 in words is "sixteen million, nine hundred seventy-four thousand, five hundred eighty-nine".