726680085 has 32 divisors (see below), whose sum is σ = 1187923968. Its totient is φ = 379192320.

The previous prime is 726680077. The next prime is 726680089. The reversal of 726680085 is 580086627.

It is not a de Polignac number, because 726680085 - 2³ = 726680077 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726680089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 343180 + ... + 345290.

It is an arithmetic number, because the mean of its divisors is an integer number (37122624).

Almost surely, 2^726680085 is an apocalyptic number.

It is an amenable number.

726680085 is a deficient number, since it is larger than the sum of its proper divisors (461243883).

726680085 is a wasteful number, since it uses less digits than its factorization.

726680085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2605.

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 726680085 is about 26957.0043773413. The cubic root of 726680085 is about 899.0442879556.

The spelling of 726680085 in words is "seven hundred twenty-six million, six hundred eighty thousand, eighty-five".