28526977 has 2 divisors, whose sum is σ = 28526978. Its totient is φ = 28526976.

The previous prime is 28526947. The next prime is 28526987. The reversal of 28526977 is 77962582.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16248961 + 12278016 = 4031^2 + 3504^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28526977 is a prime.

It is not a weakly prime, because it can be changed into another prime (28526917) 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, 14263488 + 14263489.

It is an arithmetic number, because the mean of its divisors is an integer number (14263489).

Almost surely, 2^28526977 is an apocalyptic number.

It is an amenable number.

28526977 is a deficient number, since it is larger than the sum of its proper divisors (1).

28526977 is an equidigital number, since it uses as much as digits as its factorization.

28526977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 423360, while the sum is 46.

The square root of 28526977 is about 5341.0651559403. The cubic root of 28526977 is about 305.5520843585.

The spelling of 28526977 in words is "twenty-eight million, five hundred twenty-six thousand, nine hundred seventy-seven".