5000861 has 2 divisors, whose sum is σ = 5000862. Its totient is φ = 5000860.

The previous prime is 5000851. The next prime is 5000881. The reversal of 5000861 is 1680005.

It is an a-pointer prime, because the next prime (5000881) can be obtained adding 5000861 to its sum of digits (20).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2656900 + 2343961 = 1630^2 + 1531^2 .

It is a cyclic number.

It is not a de Polignac number, because 5000861 - 2⁶ = 5000797 is a prime.

It is a super-2 number, since 2×5000861² = 50017221482642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5000851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2500430 + 2500431.

It is an arithmetic number, because the mean of its divisors is an integer number (2500431).

Almost surely, 2^5000861 is an apocalyptic number.

It is an amenable number.

5000861 is a deficient number, since it is larger than the sum of its proper divisors (1).

5000861 is an equidigital number, since it uses as much as digits as its factorization.

5000861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 5000861 is about 2236.2604946651. The cubic root of 5000861 is about 171.0074093663.

Adding to 5000861 its reverse (1680005), we get a palindrome (6680866).

The spelling of 5000861 in words is "five million, eight hundred sixty-one", and thus it is an aban number.