5781447 has 24 divisors (see below), whose sum is σ = 9619584. Its totient is φ = 3277584.

The previous prime is 5781443. The next prime is 5781467. The reversal of 5781447 is 7441875.

It is not a de Polignac number, because 5781447 - 2² = 5781443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5781443) 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 23 ways as a sum of consecutive naturals, for example, 9988 + ... + 10550.

It is an arithmetic number, because the mean of its divisors is an integer number (400816).

Almost surely, 2^5781447 is an apocalyptic number.

5781447 is a deficient number, since it is larger than the sum of its proper divisors (3838137).

5781447 is a wasteful number, since it uses less digits than its factorization.

5781447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739 (or 736 counting only the distinct ones).

The product of its digits is 31360, while the sum is 36.

The square root of 5781447 is about 2404.4639735292. The cubic root of 5781447 is about 179.4783973713.

It can be divided in two parts, 578 and 1447, that added together give a square (2025 = 45²).

The spelling of 5781447 in words is "five million, seven hundred eighty-one thousand, four hundred forty-seven".