731473 has 4 divisors (see below), whose sum is σ = 748528. Its totient is φ = 714420.

The previous prime is 731447. The next prime is 731483. The reversal of 731473 is 374137.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 731473 - 2¹⁷ = 600401 is a prime.

It is a Duffinian number.

731473 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (731413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8463 + ... + 8548.

It is an arithmetic number, because the mean of its divisors is an integer number (187132).

2⁷³¹⁴⁷³ is an apocalyptic number.

It is an amenable number.

731473 is a deficient number, since it is larger than the sum of its proper divisors (17055).

731473 is a wasteful number, since it uses less digits than its factorization.

731473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17054.

The product of its digits is 1764, while the sum is 25.

The square root of 731473 is about 855.2619481773. The cubic root of 731473 is about 90.1016546855.

The spelling of 731473 in words is "seven hundred thirty-one thousand, four hundred seventy-three".