4781866 has 8 divisors (see below), whose sum is σ = 7200864. Its totient is φ = 2381580.

The previous prime is 4781837. The next prime is 4781867. The reversal of 4781866 is 6681874.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (4781867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4020 + ... + 5071.

It is an arithmetic number, because the mean of its divisors is an integer number (900108).

Almost surely, 2^4781866 is an apocalyptic number.

4781866 is a deficient number, since it is larger than the sum of its proper divisors (2418998).

4781866 is a wasteful number, since it uses less digits than its factorization.

4781866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9356.

The product of its digits is 64512, while the sum is 40.

The square root of 4781866 is about 2186.7478135350. The cubic root of 4781866 is about 168.4738370976.

The spelling of 4781866 in words is "four million, seven hundred eighty-one thousand, eight hundred sixty-six".