947489 has 4 divisors (see below), whose sum is σ = 949440. Its totient is φ = 945540.

The previous prime is 947483. The next prime is 947501. The reversal of 947489 is 984749.

947489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 947489 - 2¹⁶ = 881953 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (947483) 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, 404 + ... + 1434.

It is an arithmetic number, because the mean of its divisors is an integer number (237360).

2⁹⁴⁷⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

947489 is a deficient number, since it is larger than the sum of its proper divisors (1951).

947489 is a wasteful number, since it uses less digits than its factorization.

947489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1950.

The product of its digits is 72576, while the sum is 41.

The square root of 947489 is about 973.3904663597. The cubic root of 947489 is about 98.2180691624.

The spelling of 947489 in words is "nine hundred forty-seven thousand, four hundred eighty-nine".