2647397 has 2 divisors, whose sum is σ = 2647398. Its totient is φ = 2647396.

The previous prime is 2647391. The next prime is 2647429. The reversal of 2647397 is 7937462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2172676 + 474721 = 1474^2 + 689^2 .

It is a cyclic number.

It is not a de Polignac number, because 2647397 - 2¹⁶ = 2581861 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2647397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2647391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1323698 + 1323699.

It is an arithmetic number, because the mean of its divisors is an integer number (1323699).

2^2647397 is an apocalyptic number.

It is an amenable number.

2647397 is a deficient number, since it is larger than the sum of its proper divisors (1).

2647397 is an equidigital number, since it uses as much as digits as its factorization.

2647397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63504, while the sum is 38.

The square root of 2647397 is about 1627.0823580876. The cubic root of 2647397 is about 138.3374260495.

The spelling of 2647397 in words is "two million, six hundred forty-seven thousand, three hundred ninety-seven".