726710685 has 16 divisors (see below), whose sum is σ = 1163572224. Its totient is φ = 387300672.

The previous prime is 726710683. The next prime is 726710741. The reversal of 726710685 is 586017627.

It is not a de Polignac number, because 726710685 - 2¹ = 726710683 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726710683) 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, 5124 + ... + 38466.

It is an arithmetic number, because the mean of its divisors is an integer number (72723264).

Almost surely, 2^726710685 is an apocalyptic number.

It is an amenable number.

726710685 is a deficient number, since it is larger than the sum of its proper divisors (436861539).

726710685 is a wasteful number, since it uses less digits than its factorization.

726710685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34804.

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 726710685 is about 26957.5719418497. The cubic root of 726710685 is about 899.0569071579.

The spelling of 726710685 in words is "seven hundred twenty-six million, seven hundred ten thousand, six hundred eighty-five".