745608 has 32 divisors (see below), whose sum is σ = 1906560. Its totient is φ = 242880.

The previous prime is 745601. The next prime is 745609. The reversal of 745608 is 806547.

It is a happy number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 745608.

It is not an unprimeable number, because it can be changed into a prime (745601) by changing a digit.

745608 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 in 7 ways as a sum of consecutive naturals, for example, 798 + ... + 1458.

It is an arithmetic number, because the mean of its divisors is an integer number (59580).

2⁷⁴⁵⁶⁰⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 745608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (953280).

745608 is an abundant number, since it is smaller than the sum of its proper divisors (1160952).

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

745608 is a wasteful number, since it uses less digits than its factorization.

745608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717 (or 713 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 745608 is about 863.4859581950. The cubic root of 745608 is about 90.6783313520.

The spelling of 745608 in words is "seven hundred forty-five thousand, six hundred eight".