28090859 has 2 divisors, whose sum is σ = 28090860. Its totient is φ = 28090858.

The previous prime is 28090841. The next prime is 28090877. The reversal of 28090859 is 95809082.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (28090841) and next prime (28090877).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28090859 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28090459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14045429 + 14045430.

It is an arithmetic number, because the mean of its divisors is an integer number (14045430).

Almost surely, 2^28090859 is an apocalyptic number.

28090859 is a deficient number, since it is larger than the sum of its proper divisors (1).

28090859 is an equidigital number, since it uses as much as digits as its factorization.

28090859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 41.

The square root of 28090859 is about 5300.0810371163. The cubic root of 28090859 is about 303.9869966449.

The spelling of 28090859 in words is "twenty-eight million, ninety thousand, eight hundred fifty-nine".