28147127 has 2 divisors, whose sum is σ = 28147128. Its totient is φ = 28147126.

The previous prime is 28147123. The next prime is 28147183. The reversal of 28147127 is 72174182.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28147127 - 2² = 28147123 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 28147093 and 28147102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28147123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14073563 + 14073564.

It is an arithmetic number, because the mean of its divisors is an integer number (14073564).

Almost surely, 2^28147127 is an apocalyptic number.

28147127 is a deficient number, since it is larger than the sum of its proper divisors (1).

28147127 is an equidigital number, since it uses as much as digits as its factorization.

28147127 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6272, while the sum is 32.

The square root of 28147127 is about 5305.3866023128. The cubic root of 28147127 is about 304.1898305080.

The spelling of 28147127 in words is "twenty-eight million, one hundred forty-seven thousand, one hundred twenty-seven".