744147 has 10 divisors (see below), whose sum is σ = 1111748. Its totient is φ = 496044.

The previous prime is 744137. The next prime is 744179. The reversal of 744147 is 741447.

It is not a de Polignac number, because 744147 - 2⁶ = 744083 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

744147 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 744147.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 744147.

It is not an unprimeable number, because it can be changed into a prime (744127) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 4513 + ... + 4674.

2⁷⁴⁴¹⁴⁷ is an apocalyptic number.

744147 is a deficient number, since it is larger than the sum of its proper divisors (367601).

744147 is an equidigital number, since it uses as much as digits as its factorization.

744147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9199 (or 9190 counting only the distinct ones).

The product of its digits is 3136, while the sum is 27.

The square root of 744147 is about 862.6395539274. The cubic root of 744147 is about 90.6190653268.

The spelling of 744147 in words is "seven hundred forty-four thousand, one hundred forty-seven", and thus it is an iban number.