5018866 has 4 divisors (see below), whose sum is σ = 7528302. Its totient is φ = 2509432.

The previous prime is 5018863. The next prime is 5018879. The reversal of 5018866 is 6688105.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6688105 = 5 ⋅1337621.

It can be written as a sum of positive squares in only one way, i.e., 3744225 + 1274641 = 1935^2 + 1129^2 .

It is not an unprimeable number, because it can be changed into a prime (5018861) 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 as a sum of consecutive naturals, namely, 1254715 + ... + 1254718.

Almost surely, 2^5018866 is an apocalyptic number.

5018866 is a deficient number, since it is larger than the sum of its proper divisors (2509436).

5018866 is a wasteful number, since it uses less digits than its factorization.

5018866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2509435.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 5018866 is about 2240.2825714628. The cubic root of 5018866 is about 171.2123941081.

The spelling of 5018866 in words is "five million, eighteen thousand, eight hundred sixty-six".