47117648 has 20 divisors (see below), whose sum is σ = 92131380. Its totient is φ = 23341824.

The previous prime is 47117647. The next prime is 47117671. The reversal of 47117648 is 84671174.

It can be written as a sum of positive squares in 2 ways, for example, as 41319184 + 5798464 = 6428^2 + 2408^2 .

It is a zygodrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47117647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11765 + ... + 15252.

It is an arithmetic number, because the mean of its divisors is an integer number (4606569).

Almost surely, 2^47117648 is an apocalyptic number.

It is an amenable number.

47117648 is a deficient number, since it is larger than the sum of its proper divisors (45013732).

47117648 is a wasteful number, since it uses less digits than its factorization.

47117648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27134 (or 27128 counting only the distinct ones).

The product of its digits is 37632, while the sum is 38.

The square root of 47117648 is about 6864.2295998896. The cubic root of 47117648 is about 361.1834714235.

The spelling of 47117648 in words is "forty-seven million, one hundred seventeen thousand, six hundred forty-eight".