723363920 has 90 divisors (see below), whose sum is σ = 1755923886. Its totient is φ = 277125120.

The previous prime is 723363911. The next prime is 723363929. The reversal of 723363920 is 29363327.

It is an interprime number because it is at equal distance from previous prime (723363911) and next prime (723363929).

It can be written as a sum of positive squares in 3 ways, for example, as 51724864 + 671639056 = 7192^2 + 25916^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (723363929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 7457312 + ... + 7457408.

Almost surely, 2^723363920 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 723363920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (877961943).

723363920 is an abundant number, since it is smaller than the sum of its proper divisors (1032559966).

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

723363920 is an equidigital number, since it uses as much as digits as its factorization.

723363920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269 (or 135 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 35.

The square root of 723363920 is about 26895.4256333675. The cubic root of 723363920 is about 897.6746224883.

The spelling of 723363920 in words is "seven hundred twenty-three million, three hundred sixty-three thousand, nine hundred twenty".