745023 has 8 divisors (see below), whose sum is σ = 1025536. Its totient is φ = 480600.

The previous prime is 745013. The next prime is 745027. The reversal of 745023 is 320547.

It is a happy number.

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

It is not a de Polignac number, because 745023 - 2⁶ = 744959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3913 + ... + 4098.

It is an arithmetic number, because the mean of its divisors is an integer number (128192).

2⁷⁴⁵⁰²³ is an apocalyptic number.

745023 is a deficient number, since it is larger than the sum of its proper divisors (280513).

745023 is a wasteful number, since it uses less digits than its factorization.

745023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8045.

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 745023 is about 863.1471485210. The cubic root of 745023 is about 90.6546099044.

The spelling of 745023 in words is "seven hundred forty-five thousand, twenty-three".