726197 has 4 divisors (see below), whose sum is σ = 741696. Its totient is φ = 710700.

The previous prime is 726191. The next prime is 726221. The reversal of 726197 is 791627.

Added to its reverse (791627) it gives a square (1517824 = 1232²).

726197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 726197 - 2⁴ = 726181 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7679 + ... + 7772.

It is an arithmetic number, because the mean of its divisors is an integer number (185424).

2⁷²⁶¹⁹⁷ is an apocalyptic number.

It is an amenable number.

726197 is a deficient number, since it is larger than the sum of its proper divisors (15499).

726197 is a wasteful number, since it uses less digits than its factorization.

726197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15498.

The product of its digits is 5292, while the sum is 32.

The square root of 726197 is about 852.1719310092. The cubic root of 726197 is about 89.8845020494.

Adding to 726197 its reverse (791627), we get a square (1517824 = 1232²).

The spelling of 726197 in words is "seven hundred twenty-six thousand, one hundred ninety-seven".