2642897 has 2 divisors, whose sum is σ = 2642898. Its totient is φ = 2642896.

The previous prime is 2642891. The next prime is 2642929. The reversal of 2642897 is 7982462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1478656 + 1164241 = 1216^2 + 1079^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2642897 is a prime.

It is a Chen prime.

It is a nialpdrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 2642897.

It is not a weakly prime, because it can be changed into another prime (2642891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1321448 + 1321449.

It is an arithmetic number, because the mean of its divisors is an integer number (1321449).

2^2642897 is an apocalyptic number.

It is an amenable number.

2642897 is a deficient number, since it is larger than the sum of its proper divisors (1).

2642897 is an equidigital number, since it uses as much as digits as its factorization.

2642897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 38.

The square root of 2642897 is about 1625.6989266159. The cubic root of 2642897 is about 138.2590004027.

The spelling of 2642897 in words is "two million, six hundred forty-two thousand, eight hundred ninety-seven".