745856 has 16 divisors (see below), whose sum is σ = 1486140. Its totient is φ = 372864.

The previous prime is 745837. The next prime is 745859. The reversal of 745856 is 658547.

It is a tau number, because it is divible by the number of its divisors (16).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2786 + ... + 3041.

2⁷⁴⁵⁸⁵⁶ is an apocalyptic number.

It is an amenable number.

745856 is a deficient number, since it is larger than the sum of its proper divisors (740284).

745856 is an equidigital number, since it uses as much as digits as its factorization.

745856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5841 (or 5829 counting only the distinct ones).

The product of its digits is 33600, while the sum is 35.

The square root of 745856 is about 863.6295502124. The cubic root of 745856 is about 90.6883838788.

The spelling of 745856 in words is "seven hundred forty-five thousand, eight hundred fifty-six".