28882757 has 2 divisors, whose sum is σ = 28882758. Its totient is φ = 28882756.

The previous prime is 28882741. The next prime is 28882759. The reversal of 28882757 is 75728882.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16273156 + 12609601 = 4034^2 + 3551^2 .

It is a cyclic number.

It is not a de Polignac number, because 28882757 - 2⁴ = 28882741 is a prime.

Together with 28882759, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28882759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14441378 + 14441379.

It is an arithmetic number, because the mean of its divisors is an integer number (14441379).

Almost surely, 2^28882757 is an apocalyptic number.

It is an amenable number.

28882757 is a deficient number, since it is larger than the sum of its proper divisors (1).

28882757 is an equidigital number, since it uses as much as digits as its factorization.

28882757 is an evil number, because the sum of its binary digits is even.

The product of its digits is 501760, while the sum is 47.

The square root of 28882757 is about 5374.2680431850. The cubic root of 28882757 is about 306.8170915823.

The spelling of 28882757 in words is "twenty-eight million, eight hundred eighty-two thousand, seven hundred fifty-seven".