947424 has 48 divisors (see below), whose sum is σ = 2540160. Its totient is φ = 309120.

The previous prime is 947423. The next prime is 947431. The reversal of 947424 is 424749.

947424 = T₃₇ + T₃₈ + ... + T₁₇₈.

947424 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×947424² = 1795224471552, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 947391 and 947400.

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 947424.

It is not an unprimeable number, because it can be changed into a prime (947423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6747 + ... + 6885.

It is an arithmetic number, because the mean of its divisors is an integer number (52920).

2⁹⁴⁷⁴²⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 947424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1270080).

947424 is an abundant number, since it is smaller than the sum of its proper divisors (1592736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

947424 is a wasteful number, since it uses less digits than its factorization.

947424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223 (or 215 counting only the distinct ones).

The product of its digits is 8064, while the sum is 30.

The square root of 947424 is about 973.3570773360. The cubic root of 947424 is about 98.2158231133.

The spelling of 947424 in words is "nine hundred forty-seven thousand, four hundred twenty-four".