726049 has 4 divisors (see below), whose sum is σ = 732820. Its totient is φ = 719280.

The previous prime is 726043. The next prime is 726071. The reversal of 726049 is 940627.

726049 is an esthetic number in base 11, because in such base its adjacent digits differ by 1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 940627 = 17 ⋅55331.

It can be written as a sum of positive squares in 2 ways, for example, as 608400 + 117649 = 780^2 + 343^2 .

It is a cyclic number.

It is not a de Polignac number, because 726049 - 2⁹ = 725537 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 (726043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3222 + ... + 3439.

It is an arithmetic number, because the mean of its divisors is an integer number (183205).

2⁷²⁶⁰⁴⁹ is an apocalyptic number.

It is an amenable number.

726049 is a deficient number, since it is larger than the sum of its proper divisors (6771).

726049 is a wasteful number, since it uses less digits than its factorization.

726049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6770.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 726049 is about 852.0850896477. The cubic root of 726049 is about 89.8783954373.

The spelling of 726049 in words is "seven hundred twenty-six thousand, forty-nine".