724534 has 8 divisors (see below), whose sum is σ = 1116288. Its totient is φ = 352440.

The previous prime is 724531. The next prime is 724547. The reversal of 724534 is 435427.

724534 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 724499 and 724508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (724531) 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, 4822 + ... + 4969.

It is an arithmetic number, because the mean of its divisors is an integer number (139536).

2⁷²⁴⁵³⁴ is an apocalyptic number.

724534 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

724534 is a deficient number, since it is larger than the sum of its proper divisors (391754).

724534 is a wasteful number, since it uses less digits than its factorization.

724534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9830.

The product of its digits is 3360, while the sum is 25.

The square root of 724534 is about 851.1956296880. The cubic root of 724534 is about 89.8158374059.

The spelling of 724534 in words is "seven hundred twenty-four thousand, five hundred thirty-four".