5087861 has 2 divisors, whose sum is σ = 5087862. Its totient is φ = 5087860.

The previous prime is 5087851. The next prime is 5087869. The reversal of 5087861 is 1687805.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3587236 + 1500625 = 1894^2 + 1225^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5087861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5087869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2543930 + 2543931.

It is an arithmetic number, because the mean of its divisors is an integer number (2543931).

Almost surely, 2^5087861 is an apocalyptic number.

It is an amenable number.

5087861 is a deficient number, since it is larger than the sum of its proper divisors (1).

5087861 is an equidigital number, since it uses as much as digits as its factorization.

5087861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 35.

The square root of 5087861 is about 2255.6287371817. The cubic root of 5087861 is about 171.9933858102.

The spelling of 5087861 in words is "five million, eighty-seven thousand, eight hundred sixty-one".