947157168 has 80 divisors (see below), whose sum is σ = 2537337600. Its totient is φ = 304093440.

The previous prime is 947157161. The next prime is 947157209. The reversal of 947157168 is 861751749.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (947157161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1128493 + ... + 1129331.

It is an arithmetic number, because the mean of its divisors is an integer number (31716720).

Almost surely, 2^947157168 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 947157168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1268668800).

947157168 is an abundant number, since it is smaller than the sum of its proper divisors (1590180432).

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

947157168 is a wasteful number, since it uses less digits than its factorization.

947157168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1690 (or 1684 counting only the distinct ones).

The product of its digits is 423360, while the sum is 48.

The square root of 947157168 is about 30775.9186377921. The cubic root of 947157168 is about 982.0660176317.

The spelling of 947157168 in words is "nine hundred forty-seven million, one hundred fifty-seven thousand, one hundred sixty-eight".