16971193 has 2 divisors, whose sum is σ = 16971194. Its totient is φ = 16971192.

The previous prime is 16971179. The next prime is 16971203. The reversal of 16971193 is 39117961.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16670889 + 300304 = 4083^2 + 548^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16971193 is a prime.

It is not a weakly prime, because it can be changed into another prime (16971133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8485596 + 8485597.

It is an arithmetic number, because the mean of its divisors is an integer number (8485597).

Almost surely, 2^16971193 is an apocalyptic number.

It is an amenable number.

16971193 is a deficient number, since it is larger than the sum of its proper divisors (1).

16971193 is an equidigital number, since it uses as much as digits as its factorization.

16971193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10206, while the sum is 37.

The square root of 16971193 is about 4119.6107825861. The cubic root of 16971193 is about 256.9828398763.

The spelling of 16971193 in words is "sixteen million, nine hundred seventy-one thousand, one hundred ninety-three".