2813897 has 2 divisors, whose sum is σ = 2813898. Its totient is φ = 2813896.

The previous prime is 2813879. The next prime is 2813903. The reversal of 2813897 is 7983182.

Together with previous prime (2813879) 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., 2572816 + 241081 = 1604^2 + 491^2 .

It is a cyclic number.

It is not a de Polignac number, because 2813897 - 2⁸ = 2813641 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2813897.

It is not a weakly prime, because it can be changed into another prime (2813807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1406948 + 1406949.

It is an arithmetic number, because the mean of its divisors is an integer number (1406949).

2^2813897 is an apocalyptic number.

It is an amenable number.

2813897 is a deficient number, since it is larger than the sum of its proper divisors (1).

2813897 is an equidigital number, since it uses as much as digits as its factorization.

2813897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 38.

The square root of 2813897 is about 1677.4674363456. The cubic root of 2813897 is about 141.1787716162.

The spelling of 2813897 in words is "two million, eight hundred thirteen thousand, eight hundred ninety-seven".