947439 has 18 divisors (see below), whose sum is σ = 1437800. Its totient is φ = 601128.

The previous prime is 947431. The next prime is 947449. The reversal of 947439 is 934749.

It is not a de Polignac number, because 947439 - 2³ = 947431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 947439.

It is not an unprimeable number, because it can be changed into a prime (947431) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4662 + ... + 4860.

2⁹⁴⁷⁴³⁹ is an apocalyptic number.

947439 is a deficient number, since it is larger than the sum of its proper divisors (490361).

947439 is a wasteful number, since it uses less digits than its factorization.

947439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251 (or 225 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 947439 is about 973.3647825969. The cubic root of 947439 is about 98.2163414414.

The spelling of 947439 in words is "nine hundred forty-seven thousand, four hundred thirty-nine".