743522 has 8 divisors (see below), whose sum is σ = 1201116. Its totient is φ = 343152.

The previous prime is 743507. The next prime is 743549. The reversal of 743522 is 225347.

It can be written as a sum of positive squares in 2 ways, for example, as 724201 + 19321 = 851^2 + 139^2 .

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

It is an unprimeable number.

743522 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14273 + ... + 14324.

2⁷⁴³⁵²² is an apocalyptic number.

743522 is a deficient number, since it is larger than the sum of its proper divisors (457594).

743522 is a wasteful number, since it uses less digits than its factorization.

743522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28612.

The product of its digits is 1680, while the sum is 23.

The square root of 743522 is about 862.2772176046. The cubic root of 743522 is about 90.5936882712.

Adding to 743522 its reverse (225347), we get a palindrome (968869).

The spelling of 743522 in words is "seven hundred forty-three thousand, five hundred twenty-two".