28060231 has 2 divisors, whose sum is σ = 28060232. Its totient is φ = 28060230.

The previous prime is 28060213. The next prime is 28060237. The reversal of 28060231 is 13206082.

Together with previous prime (28060213) 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 28060231 - 2⁵ = 28060199 is a prime.

It is a super-2 number, since 2×28060231² = 1574753127546722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28060237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14030115 + 14030116.

It is an arithmetic number, because the mean of its divisors is an integer number (14030116).

Almost surely, 2^28060231 is an apocalyptic number.

28060231 is a deficient number, since it is larger than the sum of its proper divisors (1).

28060231 is an equidigital number, since it uses as much as digits as its factorization.

28060231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 28060231 is about 5297.1908593140. The cubic root of 28060231 is about 303.8764755249.

The spelling of 28060231 in words is "twenty-eight million, sixty thousand, two hundred thirty-one".