6859491 has 16 divisors (see below), whose sum is σ = 9384960. Its totient is φ = 4455360.

The previous prime is 6859481. The next prime is 6859493. The reversal of 6859491 is 1949586.

It is not a de Polignac number, because 6859491 - 2⁹ = 6858979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6859493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24271 + ... + 24551.

It is an arithmetic number, because the mean of its divisors is an integer number (586560).

Almost surely, 2^6859491 is an apocalyptic number.

6859491 is a deficient number, since it is larger than the sum of its proper divisors (2525469).

6859491 is a wasteful number, since it uses less digits than its factorization.

6859491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466.

The product of its digits is 77760, while the sum is 42.

The square root of 6859491 is about 2619.0630003877. The cubic root of 6859491 is about 190.0045335945.

The spelling of 6859491 in words is "six million, eight hundred fifty-nine thousand, four hundred ninety-one".