6549797 has 2 divisors, whose sum is σ = 6549798. Its totient is φ = 6549796.

The previous prime is 6549787. The next prime is 6549817. The reversal of 6549797 is 7979456.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5764801 + 784996 = 2401^2 + 886^2 .

It is a cyclic number.

It is not a de Polignac number, because 6549797 - 2¹² = 6545701 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6549707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3274898 + 3274899.

It is an arithmetic number, because the mean of its divisors is an integer number (3274899).

Almost surely, 2^6549797 is an apocalyptic number.

It is an amenable number.

6549797 is a deficient number, since it is larger than the sum of its proper divisors (1).

6549797 is an equidigital number, since it uses as much as digits as its factorization.

6549797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 476280, while the sum is 47.

The square root of 6549797 is about 2559.2571187749. The cubic root of 6549797 is about 187.1009301964.

The spelling of 6549797 in words is "six million, five hundred forty-nine thousand, seven hundred ninety-seven".