947979072 has 112 divisors (see below), whose sum is σ = 2862397120. Its totient is φ = 307431936.

The previous prime is 947979061. The next prime is 947979077. The reversal of 947979072 is 270979749.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (947979077) 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, 56523 + ... + 71349.

Almost surely, 2^947979072 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 947979072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1431198560).

947979072 is an abundant number, since it is smaller than the sum of its proper divisors (1914418048).

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

947979072 is a wasteful number, since it uses less digits than its factorization.

947979072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14885 (or 14869 counting only the distinct ones).

The product of its (nonzero) digits is 2000376, while the sum is 54.

The square root of 947979072 is about 30789.2687798850. The cubic root of 947979072 is about 982.3500009921.

The spelling of 947979072 in words is "nine hundred forty-seven million, nine hundred seventy-nine thousand, seventy-two".