47866163 has 4 divisors (see below), whose sum is σ = 48884640. Its totient is φ = 46847688.

The previous prime is 47866109. The next prime is 47866171. The reversal of 47866163 is 36166874.

47866163 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36166874 = 2 ⋅18083437.

It is a cyclic number.

It is not a de Polignac number, because 47866163 - 2¹⁸ = 47604019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47866163.

It is not an unprimeable number, because it can be changed into a prime (47866363) 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 3 ways as a sum of consecutive naturals, for example, 509168 + ... + 509261.

It is an arithmetic number, because the mean of its divisors is an integer number (12221160).

Almost surely, 2^47866163 is an apocalyptic number.

47866163 is a deficient number, since it is larger than the sum of its proper divisors (1018477).

47866163 is a wasteful number, since it uses less digits than its factorization.

47866163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018476.

The product of its digits is 145152, while the sum is 41.

The square root of 47866163 is about 6918.5376345005. The cubic root of 47866163 is about 363.0860291866.

The spelling of 47866163 in words is "forty-seven million, eight hundred sixty-six thousand, one hundred sixty-three".