27828497 has 2 divisors, whose sum is σ = 27828498. Its totient is φ = 27828496.

The previous prime is 27828491. The next prime is 27828529. The reversal of 27828497 is 79482872.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23435281 + 4393216 = 4841^2 + 2096^2 .

It is a cyclic number.

It is not a de Polignac number, because 27828497 - 2⁴ = 27828481 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (27828491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13914248 + 13914249.

It is an arithmetic number, because the mean of its divisors is an integer number (13914249).

Almost surely, 2^27828497 is an apocalyptic number.

It is an amenable number.

27828497 is a deficient number, since it is larger than the sum of its proper divisors (1).

27828497 is an equidigital number, since it uses as much as digits as its factorization.

27828497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 451584, while the sum is 47.

The square root of 27828497 is about 5275.2722204641. The cubic root of 27828497 is about 303.0376459523.

The spelling of 27828497 in words is "twenty-seven million, eight hundred twenty-eight thousand, four hundred ninety-seven".