948947985 has 24 divisors (see below), whose sum is σ = 1650802920. Its totient is φ = 504271872.

The previous prime is 948947983. The next prime is 948948019. The reversal of 948947985 is 589749849.

948947985 is a `hidden beast` number, since 9 + 4 + 89 + 479 + 85 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 137381841 + 811566144 = 11721^2 + 28488^2 .

It is not a de Polignac number, because 948947985 - 2¹ = 948947983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (948947981) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25600 + ... + 50529.

It is an arithmetic number, because the mean of its divisors is an integer number (68783455).

Almost surely, 2^948947985 is an apocalyptic number.

It is an amenable number.

948947985 is a deficient number, since it is larger than the sum of its proper divisors (701854935).

948947985 is a wasteful number, since it uses less digits than its factorization.

948947985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76417 (or 76414 counting only the distinct ones).

The product of its digits is 26127360, while the sum is 63.

The square root of 948947985 is about 30804.9993507547. Note that the first 3 decimals coincide. The cubic root of 948947985 is about 982.6845680101.

The spelling of 948947985 in words is "nine hundred forty-eight million, nine hundred forty-seven thousand, nine hundred eighty-five".