5687997869 has 2 divisors, whose sum is σ = 5687997870. Its totient is φ = 5687997868.

The previous prime is 5687997859. The next prime is 5687997877. The reversal of 5687997869 is 9687997865.

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., 3870084100 + 1817913769 = 62210^2 + 42637^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5687997869 is a prime.

It is a super-2 number, since 2×5687997869² = 64706639515497082322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5687997796 and 5687997805.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5687997859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2843998934 + 2843998935.

It is an arithmetic number, because the mean of its divisors is an integer number (2843998935).

Almost surely, 2^5687997869 is an apocalyptic number.

It is an amenable number.

5687997869 is a deficient number, since it is larger than the sum of its proper divisors (1).

5687997869 is an equidigital number, since it uses as much as digits as its factorization.

5687997869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 411505920, while the sum is 74.

The square root of 5687997869 is about 75418.8164120864. The cubic root of 5687997869 is about 1785.0613289874.

The spelling of 5687997869 in words is "five billion, six hundred eighty-seven million, nine hundred ninety-seven thousand, eight hundred sixty-nine".