28170119 has 2 divisors, whose sum is σ = 28170120. Its totient is φ = 28170118.

The previous prime is 28170113. The next prime is 28170127. The reversal of 28170119 is 91107182.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28170119 - 2¹² = 28166023 is a prime.

It is a super-2 number, since 2×28170119² = 1587111208948322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 28170091 and 28170100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28170113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14085059 + 14085060.

It is an arithmetic number, because the mean of its divisors is an integer number (14085060).

Almost surely, 2^28170119 is an apocalyptic number.

28170119 is a deficient number, since it is larger than the sum of its proper divisors (1).

28170119 is an equidigital number, since it uses as much as digits as its factorization.

28170119 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 29.

The square root of 28170119 is about 5307.5530143372. The cubic root of 28170119 is about 304.2726338566.

The spelling of 28170119 in words is "twenty-eight million, one hundred seventy thousand, one hundred nineteen".