745671 has 8 divisors (see below), whose sum is σ = 1052784. Its totient is φ = 467840.

The previous prime is 745649. The next prime is 745673. The reversal of 745671 is 176547.

It is a happy number.

745671 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 745671 - 2⁷ = 745543 is a prime.

745671 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745673) 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, 7260 + ... + 7361.

It is an arithmetic number, because the mean of its divisors is an integer number (131598).

2⁷⁴⁵⁶⁷¹ is an apocalyptic number.

745671 is a deficient number, since it is larger than the sum of its proper divisors (307113).

745671 is a wasteful number, since it uses less digits than its factorization.

745671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14641.

The product of its digits is 5880, while the sum is 30.

The square root of 745671 is about 863.5224374618. The cubic root of 745671 is about 90.6808852292.

The spelling of 745671 in words is "seven hundred forty-five thousand, six hundred seventy-one".