28114637 has 2 divisors, whose sum is σ = 28114638. Its totient is φ = 28114636.

The previous prime is 28114633. The next prime is 28114649. The reversal of 28114637 is 73641182.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20241001 + 7873636 = 4499^2 + 2806^2 .

It is a cyclic number.

It is not a de Polignac number, because 28114637 - 2² = 28114633 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28114633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14057318 + 14057319.

It is an arithmetic number, because the mean of its divisors is an integer number (14057319).

Almost surely, 2^28114637 is an apocalyptic number.

It is an amenable number.

28114637 is a deficient number, since it is larger than the sum of its proper divisors (1).

28114637 is an equidigital number, since it uses as much as digits as its factorization.

28114637 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 32.

The square root of 28114637 is about 5302.3237358728. The cubic root of 28114637 is about 304.0727441625.

The spelling of 28114637 in words is "twenty-eight million, one hundred fourteen thousand, six hundred thirty-seven".