4381047 has 36 divisors (see below), whose sum is σ = 7261800. Its totient is φ = 2637360.

The previous prime is 4381043. The next prime is 4381049. The reversal of 4381047 is 7401834.

It is not a de Polignac number, because 4381047 - 2² = 4381043 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 4381047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4381043) 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 35 ways as a sum of consecutive naturals, for example, 29329 + ... + 29477.

Almost surely, 2^4381047 is an apocalyptic number.

4381047 is a deficient number, since it is larger than the sum of its proper divisors (2880753).

4381047 is a wasteful number, since it uses less digits than its factorization.

4381047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186 (or 163 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 4381047 is about 2093.0950766747. The cubic root of 4381047 is about 163.6286337258.

4381047 divided by its sum of digits (27) gives a palindrome (162261).

It can be divided in two parts, 438 and 1047, that added together give a triangular number (1485 = T₅₄).

The spelling of 4381047 in words is "four million, three hundred eighty-one thousand, forty-seven".