723056 has 10 divisors (see below), whose sum is σ = 1400952. Its totient is φ = 361520.

The previous prime is 723053. The next prime is 723067. The reversal of 723056 is 650327.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (723053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22580 + ... + 22611.

2⁷²³⁰⁵⁶ is an apocalyptic number.

It is an amenable number.

723056 is a deficient number, since it is larger than the sum of its proper divisors (677896).

723056 is a wasteful number, since it uses less digits than its factorization.

723056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45199 (or 45193 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 723056 is about 850.3269959257. The cubic root of 723056 is about 89.7547231009.

The spelling of 723056 in words is "seven hundred twenty-three thousand, fifty-six".