1006831 has 4 divisors (see below), whose sum is σ = 1150672. Its totient is φ = 862992.

The previous prime is 1006799. The next prime is 1006847. The reversal of 1006831 is 1386001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1386001 = 257 ⋅5393.

It is a cyclic number.

It is not a de Polignac number, because 1006831 - 2⁵ = 1006799 is a prime.

It is a super-2 number, since 2×1006831² = 2027417325122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1006799 and 1006808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1006861) 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, 71910 + ... + 71923.

It is an arithmetic number, because the mean of its divisors is an integer number (287668).

2^1006831 is an apocalyptic number.

1006831 is a deficient number, since it is larger than the sum of its proper divisors (143841).

1006831 is an equidigital number, since it uses as much as digits as its factorization.

1006831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143840.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 1006831 is about 1003.4096870172. The cubic root of 1006831 is about 100.2271834858.

The spelling of 1006831 in words is "one million, six thousand, eight hundred thirty-one".