28085963 has 2 divisors, whose sum is σ = 28085964. Its totient is φ = 28085962.

The previous prime is 28085957. The next prime is 28085987. The reversal of 28085963 is 36958082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28085963 - 2¹⁰ = 28084939 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28085963.

It is not a weakly prime, because it can be changed into another prime (28085263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14042981 + 14042982.

It is an arithmetic number, because the mean of its divisors is an integer number (14042982).

Almost surely, 2^28085963 is an apocalyptic number.

28085963 is a deficient number, since it is larger than the sum of its proper divisors (1).

28085963 is an equidigital number, since it uses as much as digits as its factorization.

28085963 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 28085963 is about 5299.6191372588. The cubic root of 28085963 is about 303.9693348281.

The spelling of 28085963 in words is "twenty-eight million, eighty-five thousand, nine hundred sixty-three".