723626 has 8 divisors (see below), whose sum is σ = 1132704. Its totient is φ = 346060.

The previous prime is 723623. The next prime is 723661. The reversal of 723626 is 626327.

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

It is a junction number, because it is equal to n+sod(n) for n = 723595 and 723604.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 723626.

It is not an unprimeable number, because it can be changed into a prime (723623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7820 + ... + 7911.

It is an arithmetic number, because the mean of its divisors is an integer number (141588).

2⁷²³⁶²⁶ is an apocalyptic number.

723626 is a deficient number, since it is larger than the sum of its proper divisors (409078).

723626 is a wasteful number, since it uses less digits than its factorization.

723626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15756.

The product of its digits is 3024, while the sum is 26.

The square root of 723626 is about 850.6620950765. The cubic root of 723626 is about 89.7783020743.

The spelling of 723626 in words is "seven hundred twenty-three thousand, six hundred twenty-six".