726081 has 8 divisors (see below), whose sum is σ = 974400. Its totient is φ = 480912.

The previous prime is 726071. The next prime is 726091. The reversal of 726081 is 180627.

It is an interprime number because it is at equal distance from previous prime (726071) and next prime (726091).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 726081 - 2⁷ = 725953 is a prime.

It is a super-2 number, since 2×726081² = 1054387237122, which contains 22 as substring.

726081 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (726071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181 + ... + 1218.

It is an arithmetic number, because the mean of its divisors is an integer number (121800).

2⁷²⁶⁰⁸¹ is an apocalyptic number.

It is an amenable number.

726081 is a deficient number, since it is larger than the sum of its proper divisors (248319).

726081 is a wasteful number, since it uses less digits than its factorization.

726081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1575.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 726081 is about 852.1038669083. The cubic root of 726081 is about 89.8797158562.

The spelling of 726081 in words is "seven hundred twenty-six thousand, eighty-one".