947964918 has 64 divisors (see below), whose sum is σ = 2026529280. Its totient is φ = 294970368.

The previous prime is 947964917. The next prime is 947964947. The reversal of 947964918 is 819469749.

947964918 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (947964911) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1408230 + ... + 1408902.

It is an arithmetic number, because the mean of its divisors is an integer number (31664520).

Almost surely, 2^947964918 is an apocalyptic number.

947964918 is an abundant number, since it is smaller than the sum of its proper divisors (1078564362).

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

947964918 is a wasteful number, since it uses less digits than its factorization.

947964918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 933.

The product of its digits is 3919104, while the sum is 57.

The square root of 947964918 is about 30789.0389262153. The cubic root of 947964918 is about 982.3451119070.

The spelling of 947964918 in words is "nine hundred forty-seven million, nine hundred sixty-four thousand, nine hundred eighteen".