723534 has 48 divisors (see below), whose sum is σ = 1772928. Its totient is φ = 195888.

The previous prime is 723529. The next prime is 723551. The reversal of 723534 is 435327.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6709 + ... + 6815.

It is an arithmetic number, because the mean of its divisors is an integer number (36936).

2⁷²³⁵³⁴ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 723534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (886464).

723534 is an abundant number, since it is smaller than the sum of its proper divisors (1049394).

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

723534 is a wasteful number, since it uses less digits than its factorization.

723534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149 (or 142 counting only the distinct ones).

The product of its digits is 2520, while the sum is 24.

The square root of 723534 is about 850.6080178320. The cubic root of 723534 is about 89.7744971834.

The spelling of 723534 in words is "seven hundred twenty-three thousand, five hundred thirty-four".