7447441 has 3 divisors (see below), whose sum is σ = 7450171. Its totient is φ = 7444712.

The previous prime is 7447439. The next prime is 7447459. The reversal of 7447441 is 1447447.

The square root of 7447441 is 2729.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1447447 = 59 ⋅24533.

It can be written as a sum of positive squares in only one way, i.e., 7177041 + 270400 = 2679^2 + 520^2 .

It is not a de Polignac number, because 7447441 - 2¹ = 7447439 is a prime.

It is a Duffinian number.

7447441 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7447541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1365 + ... + 4093.

Almost surely, 2^7447441 is an apocalyptic number.

7447441 is the 2729-th square number.

7447441 is the 1365-th centered octagonal number.

It is an amenable number.

7447441 is a deficient number, since it is larger than the sum of its proper divisors (2730).

7447441 is an frugal number, since it uses more digits than its factorization.

7447441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5458 (or 2729 counting only the distinct ones).

The product of its digits is 12544, while the sum is 31.

The cubic root of 7447441 is about 195.2850619291.

Multiplying 7447441 by its product of digits (12544), we get a square (93420699904 = 305648²).

The spelling of 7447441 in words is "seven million, four hundred forty-seven thousand, four hundred forty-one".