28091627 has 2 divisors, whose sum is σ = 28091628. Its totient is φ = 28091626.

The previous prime is 28091597. The next prime is 28091629. The reversal of 28091627 is 72619082.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28091627 - 2⁶ = 28091563 is a prime.

Together with 28091629, 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 (28091629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14045813 + 14045814.

It is an arithmetic number, because the mean of its divisors is an integer number (14045814).

Almost surely, 2^28091627 is an apocalyptic number.

28091627 is a deficient number, since it is larger than the sum of its proper divisors (1).

28091627 is an equidigital number, since it uses as much as digits as its factorization.

28091627 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 28091627 is about 5300.1534883435. The cubic root of 28091627 is about 303.9897669397.

The spelling of 28091627 in words is "twenty-eight million, ninety-one thousand, six hundred twenty-seven".