6680831 has 4 divisors (see below), whose sum is σ = 6861432. Its totient is φ = 6500232.

The previous prime is 6680797. The next prime is 6680851. The reversal of 6680831 is 1380866.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1380866 = 2 ⋅690433.

It is a cyclic number.

It is not a de Polignac number, because 6680831 - 2¹⁰ = 6679807 is a prime.

It is a super-2 number, since 2×6680831² = 89267005701122, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6680851) 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, 90245 + ... + 90318.

It is an arithmetic number, because the mean of its divisors is an integer number (1715358).

Almost surely, 2^6680831 is an apocalyptic number.

6680831 is a deficient number, since it is larger than the sum of its proper divisors (180601).

6680831 is a wasteful number, since it uses less digits than its factorization.

6680831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180600.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 6680831 is about 2584.7303534411. The cubic root of 6680831 is about 188.3404029681.

The spelling of 6680831 in words is "six million, six hundred eighty thousand, eight hundred thirty-one".