4861866 has 16 divisors (see below), whose sum is σ = 9815904. Its totient is φ = 1605264.

The previous prime is 4861861. The next prime is 4861877. The reversal of 4861866 is 6681684.

It is not an unprimeable number, because it can be changed into a prime (4861861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3145 + ... + 4428.

It is an arithmetic number, because the mean of its divisors is an integer number (613494).

Almost surely, 2^4861866 is an apocalyptic number.

4861866 is an abundant number, since it is smaller than the sum of its proper divisors (4954038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4861866 is a wasteful number, since it uses less digits than its factorization.

4861866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7685.

The product of its digits is 55296, while the sum is 39.

The square root of 4861866 is about 2204.9639452835. The cubic root of 4861866 is about 169.4081611065.

It can be divided in two parts, 48618 and 66, that added together give a palindrome (48684).

The spelling of 4861866 in words is "four million, eight hundred sixty-one thousand, eight hundred sixty-six".