745629 has 4 divisors (see below), whose sum is σ = 994176. Its totient is φ = 497084.

The previous prime is 745621. The next prime is 745631. The reversal of 745629 is 926547.

745629 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 926547 = 3 ⋅308849.

It is a cyclic number.

It is not a de Polignac number, because 745629 - 2³ = 745621 is a prime.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 745629.

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 3 ways as a sum of consecutive naturals, for example, 124269 + ... + 124274.

It is an arithmetic number, because the mean of its divisors is an integer number (248544).

2⁷⁴⁵⁶²⁹ is an apocalyptic number.

It is an amenable number.

745629 is a deficient number, since it is larger than the sum of its proper divisors (248547).

745629 is a wasteful number, since it uses less digits than its factorization.

745629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248546.

The product of its digits is 15120, while the sum is 33.

The square root of 745629 is about 863.4981181219. The cubic root of 745629 is about 90.6791826604.

The spelling of 745629 in words is "seven hundred forty-five thousand, six hundred twenty-nine".