947664848 has 40 divisors (see below), whose sum is σ = 1979201448. Its totient is φ = 436972032.

The previous prime is 947664841. The next prime is 947664869. The reversal of 947664848 is 848466749.

It can be written as a sum of positive squares in 4 ways, for example, as 13017664 + 934647184 = 3608^2 + 30572^2 .

It is a junction number, because it is equal to n+sod(n) for n = 947664793 and 947664802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (947664841) 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, 400886 + ... + 403242.

Almost surely, 2^947664848 is an apocalyptic number.

It is an amenable number.

947664848 is an abundant number, since it is smaller than the sum of its proper divisors (1031536600).

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

947664848 is a wasteful number, since it uses less digits than its factorization.

947664848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4311 (or 4305 counting only the distinct ones).

The product of its digits is 9289728, while the sum is 56.

The square root of 947664848 is about 30784.1655400954. The cubic root of 947664848 is about 982.2414500519.

The spelling of 947664848 in words is "nine hundred forty-seven million, six hundred sixty-four thousand, eight hundred forty-eight".