5187869 has 2 divisors, whose sum is σ = 5187870. Its totient is φ = 5187868.

The previous prime is 5187863. The next prime is 5187883. The reversal of 5187869 is 9687815.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5152900 + 34969 = 2270^2 + 187^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5187869 is a prime.

It is a super-2 number, since 2×5187869² = 53827969522322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5187863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2593934 + 2593935.

It is an arithmetic number, because the mean of its divisors is an integer number (2593935).

Almost surely, 2^5187869 is an apocalyptic number.

It is an amenable number.

5187869 is a deficient number, since it is larger than the sum of its proper divisors (1).

5187869 is an equidigital number, since it uses as much as digits as its factorization.

5187869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 44.

The square root of 5187869 is about 2277.6893993695. The cubic root of 5187869 is about 173.1129937761.

It can be divided in two parts, 5187 and 869, that multiplied together give a triangular number (4507503 = T₃₀₀₂).

The spelling of 5187869 in words is "five million, one hundred eighty-seven thousand, eight hundred sixty-nine".