947828 has 12 divisors (see below), whose sum is σ = 1895712. Its totient is φ = 406200.

The previous prime is 947819. The next prime is 947833. The reversal of 947828 is 828749.

947828 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 947791 and 947800.

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 947828.

It is an unprimeable number.

947828 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16898 + ... + 16953.

It is an arithmetic number, because the mean of its divisors is an integer number (157976).

2⁹⁴⁷⁸²⁸ is an apocalyptic number.

It is an amenable number.

947828 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

947828 is a wasteful number, since it uses less digits than its factorization.

947828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33862 (or 33860 counting only the distinct ones).

The product of its digits is 32256, while the sum is 38.

The square root of 947828 is about 973.5645844011. The cubic root of 947828 is about 98.2297815078.

The spelling of 947828 in words is "nine hundred forty-seven thousand, eight hundred twenty-eight".