947118816 has 72 divisors (see below), whose sum is σ = 3078142704. Its totient is φ = 270604800.

The previous prime is 947118793. The next prime is 947118827. The reversal of 947118816 is 618811749.

It is a happy number.

947118816 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 (72).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 232885 + ... + 236916.

It is an arithmetic number, because the mean of its divisors is an integer number (42751982).

Almost surely, 2^947118816 is an apocalyptic number.

947118816 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

947118816 is an abundant number, since it is smaller than the sum of its proper divisors (2131023888).

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

947118816 is a wasteful number, since it uses less digits than its factorization.

947118816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469824 (or 469813 counting only the distinct ones).

The product of its digits is 96768, while the sum is 45.

The square root of 947118816 is about 30775.2955469155. The cubic root of 947118816 is about 982.0527622800.

The spelling of 947118816 in words is "nine hundred forty-seven million, one hundred eighteen thousand, eight hundred sixteen".