28258627 has 2 divisors, whose sum is σ = 28258628. Its totient is φ = 28258626.

The previous prime is 28258603. The next prime is 28258661. The reversal of 28258627 is 72685282.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28258627 - 2¹⁹ = 27734339 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28258627.

It is not a weakly prime, because it can be changed into another prime (28258667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14129313 + 14129314.

It is an arithmetic number, because the mean of its divisors is an integer number (14129314).

Almost surely, 2^28258627 is an apocalyptic number.

28258627 is a deficient number, since it is larger than the sum of its proper divisors (1).

28258627 is an equidigital number, since it uses as much as digits as its factorization.

28258627 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 107520, while the sum is 40.

The square root of 28258627 is about 5315.8844043113. The cubic root of 28258627 is about 304.5909665189.

The spelling of 28258627 in words is "twenty-eight million, two hundred fifty-eight thousand, six hundred twenty-seven".