6856497 has 6 divisors (see below), whose sum is σ = 9903842. Its totient is φ = 4570992.

The previous prime is 6856483. The next prime is 6856517. The reversal of 6856497 is 7946586.

6856497 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 4064256 + 2792241 = 2016^2 + 1671^2 .

It is not a de Polignac number, because 6856497 - 2¹² = 6852401 is a prime.

It is a super-2 number, since 2×6856497² = 94023102222018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6856477) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 380908 + ... + 380925.

Almost surely, 2^6856497 is an apocalyptic number.

It is an amenable number.

6856497 is a deficient number, since it is larger than the sum of its proper divisors (3047345).

6856497 is a wasteful number, since it uses less digits than its factorization.

6856497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761839 (or 761836 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 6856497 is about 2618.4913595427. The cubic root of 6856497 is about 189.9768854614.

It can be divided in two parts, 68 and 56497, that added together give a palindrome (56565).

The spelling of 6856497 in words is "six million, eight hundred fifty-six thousand, four hundred ninety-seven".