4999866 has 16 divisors (see below), whose sum is σ = 10322688. Its totient is φ = 1612800.

The previous prime is 4999849. The next prime is 4999867. The reversal of 4999866 is 6689994.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4999867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13255 + ... + 13626.

It is an arithmetic number, because the mean of its divisors is an integer number (645168).

Almost surely, 2^4999866 is an apocalyptic number.

4999866 is an abundant number, since it is smaller than the sum of its proper divisors (5322822).

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

4999866 is a wasteful number, since it uses less digits than its factorization.

4999866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26917.

The product of its digits is 839808, while the sum is 51.

The square root of 4999866 is about 2236.0380139881. The cubic root of 4999866 is about 170.9960670755.

The spelling of 4999866 in words is "four million, nine hundred ninety-nine thousand, eight hundred sixty-six".