47161863 has 36 divisors (see below), whose sum is σ = 79761240. Its totient is φ = 26774496.

The previous prime is 47161837. The next prime is 47161867. The reversal of 47161863 is 36816174.

47161863 is a `hidden beast` number, since 471 + 6 + 186 + 3 = 666.

47161863 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 47161863 - 2²² = 42967559 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47161867) 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 35 ways as a sum of consecutive naturals, for example, 100756 + ... + 101222.

It is an arithmetic number, because the mean of its divisors is an integer number (2215590).

Almost surely, 2^47161863 is an apocalyptic number.

47161863 is a deficient number, since it is larger than the sum of its proper divisors (32599377).

47161863 is a wasteful number, since it uses less digits than its factorization.

47161863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716 (or 706 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 47161863 is about 6867.4495265710. The cubic root of 47161863 is about 361.2964137792.

The spelling of 47161863 in words is "forty-seven million, one hundred sixty-one thousand, eight hundred sixty-three".