28459577 has 2 divisors, whose sum is σ = 28459578. Its totient is φ = 28459576.

The previous prime is 28459567. The next prime is 28459583. The reversal of 28459577 is 77595482.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27678121 + 781456 = 5261^2 + 884^2 .

It is a cyclic number.

It is not a de Polignac number, because 28459577 - 2¹² = 28455481 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28459517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14229788 + 14229789.

It is an arithmetic number, because the mean of its divisors is an integer number (14229789).

Almost surely, 2^28459577 is an apocalyptic number.

It is an amenable number.

28459577 is a deficient number, since it is larger than the sum of its proper divisors (1).

28459577 is an equidigital number, since it uses as much as digits as its factorization.

28459577 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 705600, while the sum is 47.

The square root of 28459577 is about 5334.7518217814. The cubic root of 28459577 is about 305.3112544129.

The spelling of 28459577 in words is "twenty-eight million, four hundred fifty-nine thousand, five hundred seventy-seven".