723724 has 24 divisors (see below), whose sum is σ = 1391040. Its totient is φ = 327936.

The previous prime is 723721. The next prime is 723727. The reversal of 723724 is 427327.

It is an interprime number because it is at equal distance from previous prime (723721) and next prime (723727).

It is not an unprimeable number, because it can be changed into a prime (723721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1789 + ... + 2155.

It is an arithmetic number, because the mean of its divisors is an integer number (57960).

2⁷²³⁷²⁴ is an apocalyptic number.

It is an amenable number.

723724 is a deficient number, since it is larger than the sum of its proper divisors (667316).

723724 is a wasteful number, since it uses less digits than its factorization.

723724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417 (or 415 counting only the distinct ones).

The product of its digits is 2352, while the sum is 25.

The square root of 723724 is about 850.7196953169. The cubic root of 723724 is about 89.7823547555.

The spelling of 723724 in words is "seven hundred twenty-three thousand, seven hundred twenty-four", and thus it is an iban number.