28584863 has 2 divisors, whose sum is σ = 28584864. Its totient is φ = 28584862.

The previous prime is 28584859. The next prime is 28584877. The reversal of 28584863 is 36848582.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28584863 - 2² = 28584859 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28584823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14292431 + 14292432.

It is an arithmetic number, because the mean of its divisors is an integer number (14292432).

Almost surely, 2^28584863 is an apocalyptic number.

28584863 is a deficient number, since it is larger than the sum of its proper divisors (1).

28584863 is an equidigital number, since it uses as much as digits as its factorization.

28584863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 368640, while the sum is 44.

The square root of 28584863 is about 5346.4813662819. The cubic root of 28584863 is about 305.7586167927.

The spelling of 28584863 in words is "twenty-eight million, five hundred eighty-four thousand, eight hundred sixty-three".