4881861 has 12 divisors (see below), whose sum is σ = 7078188. Its totient is φ = 3242304.

The previous prime is 4881859. The next prime is 4881869. The reversal of 4881861 is 1681884.

It can be written as a sum of positive squares in 2 ways, for example, as 756900 + 4124961 = 870^2 + 2031^2 .

It is not a de Polignac number, because 4881861 - 2¹ = 4881859 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4881869) 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 11 ways as a sum of consecutive naturals, for example, 1951 + ... + 3683.

It is an arithmetic number, because the mean of its divisors is an integer number (589849).

Almost surely, 2^4881861 is an apocalyptic number.

It is an amenable number.

4881861 is a deficient number, since it is larger than the sum of its proper divisors (2196327).

4881861 is a wasteful number, since it uses less digits than its factorization.

4881861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2052 (or 2049 counting only the distinct ones).

The product of its digits is 12288, while the sum is 36.

The square root of 4881861 is about 2209.4933808455. The cubic root of 4881861 is about 169.6400805096.

The spelling of 4881861 in words is "four million, eight hundred eighty-one thousand, eight hundred sixty-one".