16857079 has 2 divisors, whose sum is σ = 16857080. Its totient is φ = 16857078.

The previous prime is 16857059. The next prime is 16857097. The reversal of 16857079 is 97075861.

Together with next prime (16857097) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16857079 - 2¹¹ = 16855031 is a prime.

It is a super-2 number, since 2×16857079² = 568322224824482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16857059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8428539 + 8428540.

It is an arithmetic number, because the mean of its divisors is an integer number (8428540).

Almost surely, 2^16857079 is an apocalyptic number.

16857079 is a deficient number, since it is larger than the sum of its proper divisors (1).

16857079 is an equidigital number, since it uses as much as digits as its factorization.

16857079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105840, while the sum is 43.

The square root of 16857079 is about 4105.7373272045. The cubic root of 16857079 is about 256.4055613842.

The spelling of 16857079 in words is "sixteen million, eight hundred fifty-seven thousand, seventy-nine".