947964128 has 48 divisors (see below), whose sum is σ = 1931134464. Its totient is φ = 457591680.

The previous prime is 947964109. The next prime is 947964137. The reversal of 947964128 is 821469749.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 541751 + ... + 543497.

It is an arithmetic number, because the mean of its divisors is an integer number (40231968).

Almost surely, 2^947964128 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 947964128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (965567232).

947964128 is an abundant number, since it is smaller than the sum of its proper divisors (983170336).

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

947964128 is a wasteful number, since it uses less digits than its factorization.

947964128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2335 (or 2327 counting only the distinct ones).

The product of its digits is 870912, while the sum is 50.

The square root of 947964128 is about 30789.0260969716. The cubic root of 947964128 is about 982.3448390232.

The spelling of 947964128 in words is "nine hundred forty-seven million, nine hundred sixty-four thousand, one hundred twenty-eight".