726147 has 6 divisors (see below), whose sum is σ = 1048892. Its totient is φ = 484092.

The previous prime is 726139. The next prime is 726149. The reversal of 726147 is 741627.

It is not a de Polignac number, because 726147 - 2³ = 726139 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 726147.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 726147.

It is not an unprimeable number, because it can be changed into a prime (726149) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40333 + ... + 40350.

2⁷²⁶¹⁴⁷ is an apocalyptic number.

726147 is a deficient number, since it is larger than the sum of its proper divisors (322745).

726147 is a wasteful number, since it uses less digits than its factorization.

726147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80689 (or 80686 counting only the distinct ones).

The product of its digits is 2352, while the sum is 27.

The square root of 726147 is about 852.1425937013. The cubic root of 726147 is about 89.8824390976.

The spelling of 726147 in words is "seven hundred twenty-six thousand, one hundred forty-seven".