947444 has 12 divisors (see below), whose sum is σ = 1755684. Its totient is φ = 445824.

The previous prime is 947431. The next prime is 947449. The reversal of 947444 is 444749.

It can be written as a sum of positive squares in 2 ways, for example, as 879844 + 67600 = 938^2 + 260^2 .

It is an Ulam number.

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 947444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (947449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6899 + ... + 7034.

It is an arithmetic number, because the mean of its divisors is an integer number (146307).

2⁹⁴⁷⁴⁴⁴ is an apocalyptic number.

It is an amenable number.

947444 is a deficient number, since it is larger than the sum of its proper divisors (808240).

947444 is a wasteful number, since it uses less digits than its factorization.

947444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13954 (or 13952 counting only the distinct ones).

The product of its digits is 16128, while the sum is 32.

The square root of 947444 is about 973.3673510037. The cubic root of 947444 is about 98.2165142163.

The spelling of 947444 in words is "nine hundred forty-seven thousand, four hundred forty-four".