947891130 has 64 divisors (see below), whose sum is σ = 2313843840. Its totient is φ = 248472576.

The previous prime is 947891101. The next prime is 947891149. The reversal of 947891130 is 31198749.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 917094 + ... + 918126.

It is an arithmetic number, because the mean of its divisors is an integer number (36153810).

Almost surely, 2^947891130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 947891130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1156921920).

947891130 is an abundant number, since it is smaller than the sum of its proper divisors (1365952710).

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

947891130 is a wasteful number, since it uses less digits than its factorization.

947891130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1535.

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 947891130 is about 30787.8406193094. The cubic root of 947891130 is about 982.3196232134.

The spelling of 947891130 in words is "nine hundred forty-seven million, eight hundred ninety-one thousand, one hundred thirty".