28576279 has 2 divisors, whose sum is σ = 28576280. Its totient is φ = 28576278.

The previous prime is 28576271. The next prime is 28576283. The reversal of 28576279 is 97267582.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28576279 - 2³ = 28576271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28576271) 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, 14288139 + 14288140.

It is an arithmetic number, because the mean of its divisors is an integer number (14288140).

Almost surely, 2^28576279 is an apocalyptic number.

28576279 is a deficient number, since it is larger than the sum of its proper divisors (1).

28576279 is an equidigital number, since it uses as much as digits as its factorization.

28576279 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 28576279 is about 5345.6785350412. The cubic root of 28576279 is about 305.7280074135.

The spelling of 28576279 in words is "twenty-eight million, five hundred seventy-six thousand, two hundred seventy-nine".