28654579 has 2 divisors, whose sum is σ = 28654580. Its totient is φ = 28654578.

The previous prime is 28654553. The next prime is 28654601. The reversal of 28654579 is 97545682.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28654579 - 2¹⁷ = 28523507 is a prime.

It is not a weakly prime, because it can be changed into another prime (28654519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14327289 + 14327290.

It is an arithmetic number, because the mean of its divisors is an integer number (14327290).

Almost surely, 2^28654579 is an apocalyptic number.

28654579 is a deficient number, since it is larger than the sum of its proper divisors (1).

28654579 is an equidigital number, since it uses as much as digits as its factorization.

28654579 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 604800, while the sum is 46.

The square root of 28654579 is about 5352.9971978323. The cubic root of 28654579 is about 306.0069878934.

The spelling of 28654579 in words is "twenty-eight million, six hundred fifty-four thousand, five hundred seventy-nine".