726622 has 8 divisors (see below), whose sum is σ = 1173816. Its totient is φ = 335352.

The previous prime is 726619. The next prime is 726623. The reversal of 726622 is 226627.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13948 + ... + 13999.

It is an arithmetic number, because the mean of its divisors is an integer number (146727).

2⁷²⁶⁶²² is an apocalyptic number.

726622 is a deficient number, since it is larger than the sum of its proper divisors (447194).

726622 is a wasteful number, since it uses less digits than its factorization.

726622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27962.

The product of its digits is 2016, while the sum is 25.

The square root of 726622 is about 852.4212573605. The cubic root of 726622 is about 89.9020333178.

The spelling of 726622 in words is "seven hundred twenty-six thousand, six hundred twenty-two".