28095491 has 2 divisors, whose sum is σ = 28095492. Its totient is φ = 28095490.

The previous prime is 28095467. The next prime is 28095493. The reversal of 28095491 is 19459082.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28095491 - 2²² = 23901187 is a prime.

It is a super-2 number, since 2×28095491² = 1578713229062162, which contains 22 as substring.

Together with 28095493, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28095493) 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, 14047745 + 14047746.

It is an arithmetic number, because the mean of its divisors is an integer number (14047746).

Almost surely, 2^28095491 is an apocalyptic number.

28095491 is a deficient number, since it is larger than the sum of its proper divisors (1).

28095491 is an equidigital number, since it uses as much as digits as its factorization.

28095491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 28095491 is about 5300.5179935550. The cubic root of 28095491 is about 304.0037042196.

The spelling of 28095491 in words is "twenty-eight million, ninety-five thousand, four hundred ninety-one".