28882657 has 2 divisors, whose sum is σ = 28882658. Its totient is φ = 28882656.

The previous prime is 28882621. The next prime is 28882663. The reversal of 28882657 is 75628882.

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., 28398241 + 484416 = 5329^2 + 696^2 .

It is a cyclic number.

It is not a de Polignac number, because 28882657 - 2²³ = 20494049 is a prime.

It is not a weakly prime, because it can be changed into another prime (28882757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14441328 + 14441329.

It is an arithmetic number, because the mean of its divisors is an integer number (14441329).

Almost surely, 2^28882657 is an apocalyptic number.

It is an amenable number.

28882657 is a deficient number, since it is larger than the sum of its proper divisors (1).

28882657 is an equidigital number, since it uses as much as digits as its factorization.

28882657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 430080, while the sum is 46.

The square root of 28882657 is about 5374.2587395845. The cubic root of 28882657 is about 306.8167374870.

The spelling of 28882657 in words is "twenty-eight million, eight hundred eighty-two thousand, six hundred fifty-seven".