745047 has 12 divisors (see below), whose sum is σ = 1133080. Its totient is φ = 470448.

The previous prime is 745037. The next prime is 745051. The reversal of 745047 is 740547.

It is not a de Polignac number, because 745047 - 2⁸ = 744791 is a prime.

It is a Duffinian number.

745047 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 745047.

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2008 + ... + 2349.

2⁷⁴⁵⁰⁴⁷ is an apocalyptic number.

745047 is a deficient number, since it is larger than the sum of its proper divisors (388033).

745047 is a wasteful number, since it uses less digits than its factorization.

745047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4382 (or 4379 counting only the distinct ones).

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

The square root of 745047 is about 863.1610510212. The cubic root of 745047 is about 90.6555833362.

It can be divided in two parts, 7 and 45047, that added together give a palindrome (45054).

The spelling of 745047 in words is "seven hundred forty-five thousand, forty-seven".