47657018 has 16 divisors (see below), whose sum is σ = 75950784. Its totient is φ = 22349760.

The previous prime is 47657011. The next prime is 47657041. The reversal of 47657018 is 81075674.

47657018 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (47657011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8321 + ... + 12827.

It is an arithmetic number, because the mean of its divisors is an integer number (4746924).

Almost surely, 2^47657018 is an apocalyptic number.

47657018 is a deficient number, since it is larger than the sum of its proper divisors (28293766).

47657018 is a wasteful number, since it uses less digits than its factorization.

47657018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4837.

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 47657018 is about 6903.4062606803. The cubic root of 47657018 is about 362.5564379824.

The spelling of 47657018 in words is "forty-seven million, six hundred fifty-seven thousand, eighteen".