724732 has 6 divisors (see below), whose sum is σ = 1268288. Its totient is φ = 362364.

The previous prime is 724729. The next prime is 724733. The reversal of 724732 is 237427.

It is a plaindrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 724697 and 724706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (724733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90588 + ... + 90595.

2⁷²⁴⁷³² is an apocalyptic number.

It is an amenable number.

724732 is a deficient number, since it is larger than the sum of its proper divisors (543556).

724732 is a wasteful number, since it uses less digits than its factorization.

724732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181187 (or 181185 counting only the distinct ones).

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

The square root of 724732 is about 851.3119287312. The cubic root of 724732 is about 89.8240182578.

The spelling of 724732 in words is "seven hundred twenty-four thousand, seven hundred thirty-two".