726215 has 8 divisors (see below), whose sum is σ = 996000. Its totient is φ = 497952.

The previous prime is 726191. The next prime is 726221. The reversal of 726215 is 512627.

726215 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 726215 - 2¹² = 722119 is a prime.

It is a congruent number.

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, 10340 + ... + 10409.

It is an arithmetic number, because the mean of its divisors is an integer number (124500).

2⁷²⁶²¹⁵ is an apocalyptic number.

726215 is a deficient number, since it is larger than the sum of its proper divisors (269785).

726215 is a wasteful number, since it uses less digits than its factorization.

726215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20761.

The product of its digits is 840, while the sum is 23.

The square root of 726215 is about 852.1824921928. The cubic root of 726215 is about 89.8852446889.

The spelling of 726215 in words is "seven hundred twenty-six thousand, two hundred fifteen".