747045 has 24 divisors (see below), whose sum is σ = 1395576. Its totient is φ = 367488.

The previous prime is 747037. The next prime is 747049. The reversal of 747045 is 540747.

747045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 31329 + 715716 = 177^2 + 846^2 .

It is not a de Polignac number, because 747045 - 2³ = 747037 is a prime.

It is an Ulam number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (747049) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54 + ... + 1223.

It is an arithmetic number, because the mean of its divisors is an integer number (58149).

2⁷⁴⁷⁰⁴⁵ is an apocalyptic number.

It is an amenable number.

747045 is a deficient number, since it is larger than the sum of its proper divisors (648531).

747045 is a wasteful number, since it uses less digits than its factorization.

747045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301 (or 1298 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 27.

The square root of 747045 is about 864.3176499413. The cubic root of 747045 is about 90.7365483329.

The spelling of 747045 in words is "seven hundred forty-seven thousand, forty-five".