947238912 has 144 divisors (see below), whose sum is σ = 2897687520. Its totient is φ = 297074688.

The previous prime is 947238907. The next prime is 947238937. The reversal of 947238912 is 219832749.

It is a tau number, because it is divible by the number of its divisors (144).

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, 311833 + ... + 314855.

It is an arithmetic number, because the mean of its divisors is an integer number (20122830).

Almost surely, 2^947238912 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 947238912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1448843760).

947238912 is an abundant number, since it is smaller than the sum of its proper divisors (1950448608).

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

947238912 is a wasteful number, since it uses less digits than its factorization.

947238912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3068 (or 3045 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 947238912 is about 30777.2466604796. The cubic root of 947238912 is about 982.0942690835.

It can be divided in two parts, 9472 and 38912, that added together give a palindrome (48384).

The spelling of 947238912 in words is "nine hundred forty-seven million, two hundred thirty-eight thousand, nine hundred twelve".