28576477 has 2 divisors, whose sum is σ = 28576478. Its totient is φ = 28576476.

The previous prime is 28576453. The next prime is 28576501. The reversal of 28576477 is 77467582.

It is a balanced prime because it is at equal distance from previous prime (28576453) and next prime (28576501).

It can be written as a sum of positive squares in only one way, i.e., 25948836 + 2627641 = 5094^2 + 1621^2 .

It is a cyclic number.

It is not a de Polignac number, because 28576477 - 2¹⁵ = 28543709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28576447) 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, 14288238 + 14288239.

It is an arithmetic number, because the mean of its divisors is an integer number (14288239).

Almost surely, 2^28576477 is an apocalyptic number.

It is an amenable number.

28576477 is a deficient number, since it is larger than the sum of its proper divisors (1).

28576477 is an equidigital number, since it uses as much as digits as its factorization.

28576477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 658560, while the sum is 46.

The square root of 28576477 is about 5345.6970546412. The cubic root of 28576477 is about 305.7287135237.

The spelling of 28576477 in words is "twenty-eight million, five hundred seventy-six thousand, four hundred seventy-seven".