1726081 has 16 divisors (see below), whose sum is σ = 2101248. Its totient is φ = 1386000.

The previous prime is 1726079. The next prime is 1726091. The reversal of 1726081 is 1806271.

It is not a de Polignac number, because 1726081 - 2¹ = 1726079 is a prime.

It is a super-2 number, since 2×1726081² = 5958711237122, 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 (1726031) 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, 11356 + ... + 11506.

It is an arithmetic number, because the mean of its divisors is an integer number (131328).

2^1726081 is an apocalyptic number.

It is an amenable number.

1726081 is a deficient number, since it is larger than the sum of its proper divisors (375167).

1726081 is a wasteful number, since it uses less digits than its factorization.

1726081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252.

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

The square root of 1726081 is about 1313.8040188704. The cubic root of 1726081 is about 119.9555622498.

The spelling of 1726081 in words is "one million, seven hundred twenty-six thousand, eighty-one".