726697 has 2 divisors, whose sum is σ = 726698. Its totient is φ = 726696.

The previous prime is 726689. The next prime is 726701. The reversal of 726697 is 796627.

726697 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 385641 + 341056 = 621^2 + 584^2 .

It is a cyclic number.

It is not a de Polignac number, because 726697 - 2³ = 726689 is a prime.

It is not a weakly prime, because it can be changed into another prime (726647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363348 + 363349.

It is an arithmetic number, because the mean of its divisors is an integer number (363349).

2⁷²⁶⁶⁹⁷ is an apocalyptic number.

It is an amenable number.

726697 is a deficient number, since it is larger than the sum of its proper divisors (1).

726697 is an equidigital number, since it uses as much as digits as its factorization.

726697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31752, while the sum is 37.

The square root of 726697 is about 852.4652485586. The cubic root of 726697 is about 89.9051263614.

The spelling of 726697 in words is "seven hundred twenty-six thousand, six hundred ninety-seven".