6897859 has 4 divisors (see below), whose sum is σ = 6959016. Its totient is φ = 6836704.

The previous prime is 6897857. The next prime is 6897883. The reversal of 6897859 is 9587986.

6897859 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6897859 - 2¹ = 6897857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6897857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30409 + ... + 30634.

It is an arithmetic number, because the mean of its divisors is an integer number (1739754).

Almost surely, 2^6897859 is an apocalyptic number.

6897859 is a deficient number, since it is larger than the sum of its proper divisors (61157).

6897859 is a wasteful number, since it uses less digits than its factorization.

6897859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61156.

The product of its digits is 1088640, while the sum is 52.

The square root of 6897859 is about 2626.3775433094. The cubic root of 6897859 is about 190.3581333900.

The spelling of 6897859 in words is "six million, eight hundred ninety-seven thousand, eight hundred fifty-nine".