745623 has 6 divisors (see below), whose sum is σ = 1077024. Its totient is φ = 497076.

The previous prime is 745621. The next prime is 745631. The reversal of 745623 is 326547.

It is a happy number.

745623 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 745623 - 2¹ = 745621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745621) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41415 + ... + 41432.

It is an arithmetic number, because the mean of its divisors is an integer number (179504).

2⁷⁴⁵⁶²³ is an apocalyptic number.

745623 is a deficient number, since it is larger than the sum of its proper divisors (331401).

745623 is a wasteful number, since it uses less digits than its factorization.

745623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82853 (or 82850 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 745623 is about 863.4946438745. The cubic root of 745623 is about 90.6789394310.

The spelling of 745623 in words is "seven hundred forty-five thousand, six hundred twenty-three".