1066831 has 4 divisors (see below), whose sum is σ = 1123000. Its totient is φ = 1010664.

The previous prime is 1066817. The next prime is 1066847. The reversal of 1066831 is 1386601.

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 1066831 - 2⁹ = 1066319 is a prime.

It is a super-2 number, since 2×1066831² = 2276256765122, 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 = 1066796 and 1066805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066811) 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, 28056 + ... + 28093.

It is an arithmetic number, because the mean of its divisors is an integer number (280750).

2^1066831 is an apocalyptic number.

1066831 is a deficient number, since it is larger than the sum of its proper divisors (56169).

1066831 is an equidigital number, since it uses as much as digits as its factorization.

1066831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56168.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1066831 is about 1032.8751134576. The cubic root of 1066831 is about 102.1798378073.

The spelling of 1066831 in words is "one million, sixty-six thousand, eight hundred thirty-one".