723930 has 32 divisors (see below), whose sum is σ = 1771200. Its totient is φ = 189312.

The previous prime is 723923. The next prime is 723949. The reversal of 723930 is 39327.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 723930.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1566 + ... + 1974.

It is an arithmetic number, because the mean of its divisors is an integer number (55350).

2⁷²³⁹³⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 723930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (885600).

723930 is an abundant number, since it is smaller than the sum of its proper divisors (1047270).

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

723930 is a wasteful number, since it uses less digits than its factorization.

723930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478.

The product of its (nonzero) digits is 1134, while the sum is 24.

The square root of 723930 is about 850.8407606597. The cubic root of 723930 is about 89.7908724641.

It can be divided in two parts, 723 and 930, that added together give a triangular number (1653 = T₅₇).

The spelling of 723930 in words is "seven hundred twenty-three thousand, nine hundred thirty".