726545 has 8 divisors (see below), whose sum is σ = 876480. Its totient is φ = 578160.

The previous prime is 726533. The next prime is 726559. The reversal of 726545 is 545627.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 726545 - 2⁸ = 726289 is a prime.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 726545.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1436 + ... + 1874.

It is an arithmetic number, because the mean of its divisors is an integer number (109560).

2⁷²⁶⁵⁴⁵ is an apocalyptic number.

It is an amenable number.

726545 is a deficient number, since it is larger than the sum of its proper divisors (149935).

726545 is a wasteful number, since it uses less digits than its factorization.

726545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775.

The product of its digits is 8400, while the sum is 29.

The square root of 726545 is about 852.3760907018. The cubic root of 726545 is about 89.8988575717.

The spelling of 726545 in words is "seven hundred twenty-six thousand, five hundred forty-five".