745843 has 8 divisors (see below), whose sum is σ = 870912. Its totient is φ = 625416.

The previous prime is 745837. The next prime is 745859. The reversal of 745843 is 348547.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-745843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (745873) 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 7 ways as a sum of consecutive naturals, for example, 805 + ... + 1462.

It is an arithmetic number, because the mean of its divisors is an integer number (108864).

2⁷⁴⁵⁸⁴³ is an apocalyptic number.

745843 is a deficient number, since it is larger than the sum of its proper divisors (125069).

745843 is a wasteful number, since it uses less digits than its factorization.

745843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2321.

The product of its digits is 13440, while the sum is 31.

The square root of 745843 is about 863.6220238044. The cubic root of 745843 is about 90.6878569872.

The spelling of 745843 in words is "seven hundred forty-five thousand, eight hundred forty-three".