743745 has 16 divisors (see below), whose sum is σ = 1200960. Its totient is φ = 393024.

The previous prime is 743731. The next prime is 743747. The reversal of 743745 is 547347.

It is not a de Polignac number, because 743745 - 2¹² = 739649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (743747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2547 + ... + 2823.

It is an arithmetic number, because the mean of its divisors is an integer number (75060).

2⁷⁴³⁷⁴⁵ is an apocalyptic number.

It is an amenable number.

743745 is a deficient number, since it is larger than the sum of its proper divisors (457215).

743745 is a wasteful number, since it uses less digits than its factorization.

743745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464.

The product of its digits is 11760, while the sum is 30.

The square root of 743745 is about 862.4065166730. The cubic root of 743745 is about 90.6027444359.

The spelling of 743745 in words is "seven hundred forty-three thousand, seven hundred forty-five".