947688 has 32 divisors (see below), whose sum is σ = 2708160. Its totient is φ = 270720.

The previous prime is 947659. The next prime is 947707. The reversal of 947688 is 886749.

It is a happy number.

It is a super-2 number, since 2×947688² = 1796225090688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

947688 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 7 ways as a sum of consecutive naturals, for example, 2653 + ... + 2988.

It is an arithmetic number, because the mean of its divisors is an integer number (84630).

2⁹⁴⁷⁶⁸⁸ is an apocalyptic number.

It is an amenable number.

947688 is an abundant number, since it is smaller than the sum of its proper divisors (1760472).

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

947688 is a wasteful number, since it uses less digits than its factorization.

947688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5657 (or 5653 counting only the distinct ones).

The product of its digits is 96768, while the sum is 42.

The square root of 947688 is about 973.4926810203. The cubic root of 947688 is about 98.2249448896.

The spelling of 947688 in words is "nine hundred forty-seven thousand, six hundred eighty-eight".