731433 has 8 divisors (see below), whose sum is σ = 979200. Its totient is φ = 485648.

The previous prime is 731413. The next prime is 731447. The reversal of 731433 is 334137.

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

It is a cyclic number.

It is not a de Polignac number, because 731433 - 2⁶ = 731369 is a prime.

731433 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 7 ways as a sum of consecutive naturals, for example, 1183 + ... + 1691.

It is an arithmetic number, because the mean of its divisors is an integer number (122400).

2⁷³¹⁴³³ is an apocalyptic number.

It is an amenable number.

731433 is a deficient number, since it is larger than the sum of its proper divisors (247767).

731433 is a wasteful number, since it uses less digits than its factorization.

731433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991.

The product of its digits is 756, while the sum is 21.

The square root of 731433 is about 855.2385632091. The cubic root of 731433 is about 90.1000122772.

The spelling of 731433 in words is "seven hundred thirty-one thousand, four hundred thirty-three".