723481 has 8 divisors (see below), whose sum is σ = 799200. Its totient is φ = 649440.

The previous prime is 723479. The next prime is 723491. The reversal of 723481 is 184327.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 723481 - 2¹ = 723479 is a prime.

It is a super-2 number, since 2×723481² = 1046849514722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (723421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 610 + ... + 1348.

It is an arithmetic number, because the mean of its divisors is an integer number (99900).

2⁷²³⁴⁸¹ is an apocalyptic number.

It is an amenable number.

723481 is a deficient number, since it is larger than the sum of its proper divisors (75719).

723481 is a wasteful number, since it uses less digits than its factorization.

723481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839.

The product of its digits is 1344, while the sum is 25.

The square root of 723481 is about 850.5768630759. The cubic root of 723481 is about 89.7723050890.

It can be divided in two parts, 72 and 3481, that added together give a palindrome (3553).

The spelling of 723481 in words is "seven hundred twenty-three thousand, four hundred eighty-one".