28583663 has 2 divisors, whose sum is σ = 28583664. Its totient is φ = 28583662.

The previous prime is 28583651. The next prime is 28583693. The reversal of 28583663 is 36638582.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28583663 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28583663.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28583693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14291831 + 14291832.

It is an arithmetic number, because the mean of its divisors is an integer number (14291832).

Almost surely, 2^28583663 is an apocalyptic number.

28583663 is a deficient number, since it is larger than the sum of its proper divisors (1).

28583663 is an equidigital number, since it uses as much as digits as its factorization.

28583663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 41.

The square root of 28583663 is about 5346.3691417634. The cubic root of 28583663 is about 305.7543381240.

The spelling of 28583663 in words is "twenty-eight million, five hundred eighty-three thousand, six hundred sixty-three".