743545 has 12 divisors (see below), whose sum is σ = 981540. Its totient is φ = 540320.

The previous prime is 743507. The next prime is 743549. The reversal of 743545 is 545347.

It can be written as a sum of positive squares in 2 ways, for example, as 559504 + 184041 = 748^2 + 429^2 .

It is not a de Polignac number, because 743545 - 2¹⁵ = 710777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (743549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10 + ... + 1219.

It is an arithmetic number, because the mean of its divisors is an integer number (81795).

2⁷⁴³⁵⁴⁵ is an apocalyptic number.

It is an amenable number.

743545 is a deficient number, since it is larger than the sum of its proper divisors (237995).

743545 is a wasteful number, since it uses less digits than its factorization.

743545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256 (or 1245 counting only the distinct ones).

The product of its digits is 8400, while the sum is 28.

The square root of 743545 is about 862.2905542797. The cubic root of 743545 is about 90.5946223988.

The spelling of 743545 in words is "seven hundred forty-three thousand, five hundred forty-five".