743331 has 8 divisors (see below), whose sum is σ = 999424. Its totient is φ = 491400.

The previous prime is 743321. The next prime is 743333. The reversal of 743331 is 133347.

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

It is not a de Polignac number, because 743331 - 2⁷ = 743203 is a prime.

It is a super-2 number, since 2×743331² = 1105081951122, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 743298 and 743307.

It is not an unprimeable number, because it can be changed into a prime (743333) 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, 595 + ... + 1356.

It is an arithmetic number, because the mean of its divisors is an integer number (124928).

2⁷⁴³³³¹ is an apocalyptic number.

743331 is a deficient number, since it is larger than the sum of its proper divisors (256093).

743331 is a wasteful number, since it uses less digits than its factorization.

743331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2081.

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

The square root of 743331 is about 862.1664572459. The cubic root of 743331 is about 90.5859302060.

Adding to 743331 its reverse (133347), we get a palindrome (876678).

The spelling of 743331 in words is "seven hundred forty-three thousand, three hundred thirty-one".