731481 has 16 divisors (see below), whose sum is σ = 1055040. Its totient is φ = 449280.

The previous prime is 731447. The next prime is 731483. The reversal of 731481 is 184137.

731481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 731481 - 2⁹ = 730969 is a prime.

It is a super-2 number, since 2×731481² = 1070128906722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (731483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2181 + ... + 2493.

It is an arithmetic number, because the mean of its divisors is an integer number (65940).

2⁷³¹⁴⁸¹ is an apocalyptic number.

It is an amenable number.

731481 is a deficient number, since it is larger than the sum of its proper divisors (323559).

731481 is a wasteful number, since it uses less digits than its factorization.

731481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376.

The product of its digits is 672, while the sum is 24.

The square root of 731481 is about 855.2666250942. The cubic root of 731481 is about 90.1019831600.

The spelling of 731481 in words is "seven hundred thirty-one thousand, four hundred eighty-one".