1081726 has 4 divisors (see below), whose sum is σ = 1622592. Its totient is φ = 540862.

The previous prime is 1081723. The next prime is 1081733. The reversal of 1081726 is 6271801.

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

It is a super-2 number, since 2×1081726² = 2340262278152, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1081726.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1081721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270430 + ... + 270433.

It is an arithmetic number, because the mean of its divisors is an integer number (405648).

2^1081726 is an apocalyptic number.

1081726 is a deficient number, since it is larger than the sum of its proper divisors (540866).

1081726 is an equidigital number, since it uses as much as digits as its factorization.

1081726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540865.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 1081726 is about 1040.0605751590. The cubic root of 1081726 is about 102.6531836082.

The spelling of 1081726 in words is "one million, eighty-one thousand, seven hundred twenty-six".