6897797 has 2 divisors, whose sum is σ = 6897798. Its totient is φ = 6897796.

The previous prime is 6897743. The next prime is 6897811. The reversal of 6897797 is 7977986.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5909761 + 988036 = 2431^2 + 994^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6897797 is a prime.

It is a super-3 number, since 3×6897797³ (a number of 21 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6827797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3448898 + 3448899.

It is an arithmetic number, because the mean of its divisors is an integer number (3448899).

Almost surely, 2^6897797 is an apocalyptic number.

It is an amenable number.

6897797 is a deficient number, since it is larger than the sum of its proper divisors (1).

6897797 is an equidigital number, since it uses as much as digits as its factorization.

6897797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1333584, while the sum is 53.

The square root of 6897797 is about 2626.3657399532. The cubic root of 6897797 is about 190.3575630565.

The spelling of 6897797 in words is "six million, eight hundred ninety-seven thousand, seven hundred ninety-seven".