726945 has 8 divisors (see below), whose sum is σ = 1163136. Its totient is φ = 387696.

The previous prime is 726941. The next prime is 726953. The reversal of 726945 is 549627.

726945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 726945 - 2² = 726941 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (726941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24217 + ... + 24246.

It is an arithmetic number, because the mean of its divisors is an integer number (145392).

2⁷²⁶⁹⁴⁵ is an apocalyptic number.

It is an amenable number.

726945 is a deficient number, since it is larger than the sum of its proper divisors (436191).

726945 is a wasteful number, since it uses less digits than its factorization.

726945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48471.

The product of its digits is 15120, while the sum is 33.

The square root of 726945 is about 852.6106966254. The cubic root of 726945 is about 89.9153525104.

The spelling of 726945 in words is "seven hundred twenty-six thousand, nine hundred forty-five".