726437 has 4 divisors (see below), whose sum is σ = 728160. Its totient is φ = 724716.

The previous prime is 726431. The next prime is 726457. The reversal of 726437 is 734627.

726437 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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 726437 - 2⁸ = 726181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726431) 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, 248 + ... + 1230.

It is an arithmetic number, because the mean of its divisors is an integer number (182040).

2⁷²⁶⁴³⁷ is an apocalyptic number.

It is an amenable number.

726437 is a deficient number, since it is larger than the sum of its proper divisors (1723).

726437 is an equidigital number, since it uses as much as digits as its factorization.

726437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1722.

The product of its digits is 7056, while the sum is 29.

The square root of 726437 is about 852.3127360306. The cubic root of 726437 is about 89.8944029002.

The spelling of 726437 in words is "seven hundred twenty-six thousand, four hundred thirty-seven".