745566 has 16 divisors (see below), whose sum is σ = 1499664. Its totient is φ = 247104.

The previous prime is 745543. The next prime is 745567. The reversal of 745566 is 665547.

745566 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745567) by changing a digit.

745566 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 7 ways as a sum of consecutive naturals, for example, 1680 + ... + 2076.

It is an arithmetic number, because the mean of its divisors is an integer number (93729).

2⁷⁴⁵⁵⁶⁶ is an apocalyptic number.

745566 is an abundant number, since it is smaller than the sum of its proper divisors (754098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

745566 is a wasteful number, since it uses less digits than its factorization.

745566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715.

The product of its digits is 25200, while the sum is 33.

The square root of 745566 is about 863.4616378276. The cubic root of 745566 is about 90.6766286872.

The spelling of 745566 in words is "seven hundred forty-five thousand, five hundred sixty-six".