2808497 has 2 divisors, whose sum is σ = 2808498. Its totient is φ = 2808496.

The previous prime is 2808479. The next prime is 2808499. The reversal of 2808497 is 7948082.

Together with previous prime (2808479) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2768896 + 39601 = 1664^2 + 199^2 .

It is a cyclic number.

It is not a de Polignac number, because 2808497 - 2⁶ = 2808433 is a prime.

Together with 2808499, it forms a pair of twin primes.

It is a Chen prime.

It is a nialpdrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 2808497.

It is not a weakly prime, because it can be changed into another prime (2808499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1404248 + 1404249.

It is an arithmetic number, because the mean of its divisors is an integer number (1404249).

2^2808497 is an apocalyptic number.

It is an amenable number.

2808497 is a deficient number, since it is larger than the sum of its proper divisors (1).

2808497 is an equidigital number, since it uses as much as digits as its factorization.

2808497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 2808497 is about 1675.8570941462. The cubic root of 2808497 is about 141.0884042291.

The spelling of 2808497 in words is "two million, eight hundred eight thousand, four hundred ninety-seven".