16970893 has 2 divisors, whose sum is σ = 16970894. Its totient is φ = 16970892.

The previous prime is 16970873. The next prime is 16970897. The reversal of 16970893 is 39807961.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11854249 + 5116644 = 3443^2 + 2262^2 .

It is an emirp because it is prime and its reverse (39807961) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16970893 - 2⁵ = 16970861 is a prime.

It is a super-2 number, since 2×16970893² = 576022418434898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16970897) 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, 8485446 + 8485447.

It is an arithmetic number, because the mean of its divisors is an integer number (8485447).

Almost surely, 2^16970893 is an apocalyptic number.

It is an amenable number.

16970893 is a deficient number, since it is larger than the sum of its proper divisors (1).

16970893 is an equidigital number, since it uses as much as digits as its factorization.

16970893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 16970893 is about 4119.5743712185. The cubic root of 16970893 is about 256.9813256377.

The spelling of 16970893 in words is "sixteen million, nine hundred seventy thousand, eight hundred ninety-three".