28114657 has 2 divisors, whose sum is σ = 28114658. Its totient is φ = 28114656.

The previous prime is 28114649. The next prime is 28114679. The reversal of 28114657 is 75641182.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14930496 + 13184161 = 3864^2 + 3631^2 .

It is a cyclic number.

It is not a de Polignac number, because 28114657 - 2³ = 28114649 is a prime.

It is not a weakly prime, because it can be changed into another prime (28114637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14057328 + 14057329.

It is an arithmetic number, because the mean of its divisors is an integer number (14057329).

Almost surely, 2^28114657 is an apocalyptic number.

It is an amenable number.

28114657 is a deficient number, since it is larger than the sum of its proper divisors (1).

28114657 is an equidigital number, since it uses as much as digits as its factorization.

28114657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13440, while the sum is 34.

The square root of 28114657 is about 5302.3256218380. The cubic root of 28114657 is about 304.0728162656.

The spelling of 28114657 in words is "twenty-eight million, one hundred fourteen thousand, six hundred fifty-seven".