6858697 has 2 divisors, whose sum is σ = 6858698. Its totient is φ = 6858696.

The previous prime is 6858689. The next prime is 6858707. The reversal of 6858697 is 7968586.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6661561 + 197136 = 2581^2 + 444^2 .

It is a cyclic number.

It is not a de Polignac number, because 6858697 - 2³ = 6858689 is a prime.

It is a Chen prime.

6858697 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 6858697.

It is not a weakly prime, because it can be changed into another prime (6858617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3429348 + 3429349.

It is an arithmetic number, because the mean of its divisors is an integer number (3429349).

Almost surely, 2^6858697 is an apocalyptic number.

It is an amenable number.

6858697 is a deficient number, since it is larger than the sum of its proper divisors (1).

6858697 is an equidigital number, since it uses as much as digits as its factorization.

6858697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 725760, while the sum is 49.

The square root of 6858697 is about 2618.9114150731. The cubic root of 6858697 is about 189.9972021749.

The spelling of 6858697 in words is "six million, eight hundred fifty-eight thousand, six hundred ninety-seven".