6996687869 has 2 divisors, whose sum is σ = 6996687870. Its totient is φ = 6996687868.

The previous prime is 6996687839. The next prime is 6996687899. The reversal of 6996687869 is 9687866996.

It is a balanced prime because it is at equal distance from previous prime (6996687839) and next prime (6996687899).

It can be written as a sum of positive squares in only one way, i.e., 6982774969 + 13912900 = 83563^2 + 3730^2 .

It is a cyclic number.

It is not a de Polignac number, because 6996687869 - 2¹² = 6996683773 is a prime.

It is a super-3 number, since 3×6996687869³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 6996687796 and 6996687805.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6996687839) 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, 3498343934 + 3498343935.

It is an arithmetic number, because the mean of its divisors is an integer number (3498343935).

Almost surely, 2^6996687869 is an apocalyptic number.

It is an amenable number.

6996687869 is a deficient number, since it is larger than the sum of its proper divisors (1).

6996687869 is an equidigital number, since it uses as much as digits as its factorization.

6996687869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 423263232, while the sum is 74.

The square root of 6996687869 is about 83646.2065427955. The cubic root of 6996687869 is about 1912.6294266661.

The spelling of 6996687869 in words is "six billion, nine hundred ninety-six million, six hundred eighty-seven thousand, eight hundred sixty-nine".