724812 has 72 divisors (see below), whose sum is σ = 2063040. Its totient is φ = 195840.

The previous prime is 724807. The next prime is 724813. The reversal of 724812 is 218427.

724812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 724812.

It is not an unprimeable number, because it can be changed into a prime (724813) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38139 + ... + 38157.

2⁷²⁴⁸¹² is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 724812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1031520).

724812 is an abundant number, since it is smaller than the sum of its proper divisors (1338228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

724812 is a wasteful number, since it uses less digits than its factorization.

724812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71 (or 52 counting only the distinct ones).

The product of its digits is 896, while the sum is 24.

The square root of 724812 is about 851.3589137373. The cubic root of 724812 is about 89.8273232299.

It can be divided in two parts, 7248 and 12, that added together give a triangular number (7260 = T₁₂₀).

The spelling of 724812 in words is "seven hundred twenty-four thousand, eight hundred twelve".