726678 has 16 divisors (see below), whose sum is σ = 1614960. Its totient is φ = 242208.

The previous prime is 726659. The next prime is 726679. The reversal of 726678 is 876627.

726678 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726679) by changing a digit.

726678 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6675 + ... + 6782.

It is an arithmetic number, because the mean of its divisors is an integer number (100935).

2⁷²⁶⁶⁷⁸ is an apocalyptic number.

726678 is an abundant number, since it is smaller than the sum of its proper divisors (888282).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

726678 is a wasteful number, since it uses less digits than its factorization.

726678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13468 (or 13462 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 726678 is about 852.4541043364. The cubic root of 726678 is about 89.9043428105.

The spelling of 726678 in words is "seven hundred twenty-six thousand, six hundred seventy-eight".