947395664 has 40 divisors (see below), whose sum is σ = 1901544960. Its totient is φ = 456720768.

The previous prime is 947395663. The next prime is 947395721. The reversal of 947395664 is 466593749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (947395663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 603809 + ... + 605375.

It is an arithmetic number, because the mean of its divisors is an integer number (47538624).

Almost surely, 2^947395664 is an apocalyptic number.

It is an amenable number.

947395664 is an abundant number, since it is smaller than the sum of its proper divisors (954149296).

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

947395664 is a wasteful number, since it uses less digits than its factorization.

947395664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2907 (or 2901 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 53.

The square root of 947395664 is about 30779.7931117154. The cubic root of 947395664 is about 982.1484394193.

The spelling of 947395664 in words is "nine hundred forty-seven million, three hundred ninety-five thousand, six hundred sixty-four".