28576663 has 2 divisors, whose sum is σ = 28576664. Its totient is φ = 28576662.

The previous prime is 28576621. The next prime is 28576721. The reversal of 28576663 is 36667582.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28576663 - 2¹³ = 28568471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28576963) 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, 14288331 + 14288332.

It is an arithmetic number, because the mean of its divisors is an integer number (14288332).

Almost surely, 2^28576663 is an apocalyptic number.

28576663 is a deficient number, since it is larger than the sum of its proper divisors (1).

28576663 is an equidigital number, since it uses as much as digits as its factorization.

28576663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 43.

The square root of 28576663 is about 5345.7144517828. The cubic root of 28576663 is about 305.7293768364.

The spelling of 28576663 in words is "twenty-eight million, five hundred seventy-six thousand, six hundred sixty-three".