6390697 has 2 divisors, whose sum is σ = 6390698. Its totient is φ = 6390696.

The previous prime is 6390689. The next prime is 6390719. The reversal of 6390697 is 7960936.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4016016 + 2374681 = 2004^2 + 1541^2 .

It is a cyclic number.

It is not a de Polignac number, because 6390697 - 2³ = 6390689 is a prime.

It is not a weakly prime, because it can be changed into another prime (6397697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3195348 + 3195349.

It is an arithmetic number, because the mean of its divisors is an integer number (3195349).

Almost surely, 2^6390697 is an apocalyptic number.

It is an amenable number.

6390697 is a deficient number, since it is larger than the sum of its proper divisors (1).

6390697 is an equidigital number, since it uses as much as digits as its factorization.

6390697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61236, while the sum is 40.

The square root of 6390697 is about 2527.9827926630. The cubic root of 6390697 is about 185.5735499274.

The spelling of 6390697 in words is "six million, three hundred ninety thousand, six hundred ninety-seven".