4818861 has 12 divisors (see below), whose sum is σ = 6980220. Its totient is φ = 3203520.

The previous prime is 4818829. The next prime is 4818887. The reversal of 4818861 is 1688184.

It can be written as a sum of positive squares in 2 ways, for example, as 1822500 + 2996361 = 1350^2 + 1731^2 .

It is not a de Polignac number, because 4818861 - 2⁵ = 4818829 is a prime.

4818861 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4818061) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4651 + ... + 5591.

It is an arithmetic number, because the mean of its divisors is an integer number (581685).

Almost surely, 2^4818861 is an apocalyptic number.

It is an amenable number.

4818861 is a deficient number, since it is larger than the sum of its proper divisors (2161359).

4818861 is a wasteful number, since it uses less digits than its factorization.

4818861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1516 (or 1513 counting only the distinct ones).

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

The square root of 4818861 is about 2195.1904245418. The cubic root of 4818861 is about 168.9071885148.

The spelling of 4818861 in words is "four million, eight hundred eighteen thousand, eight hundred sixty-one".