869080687 has 2 divisors, whose sum is σ = 869080688. Its totient is φ = 869080686.

The previous prime is 869080673. The next prime is 869080727. The reversal of 869080687 is 786080968.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 869080687 - 2¹⁹ = 868556399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (869080657) 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, 434540343 + 434540344.

It is an arithmetic number, because the mean of its divisors is an integer number (434540344).

Almost surely, 2^869080687 is an apocalyptic number.

869080687 is a deficient number, since it is larger than the sum of its proper divisors (1).

869080687 is an equidigital number, since it uses as much as digits as its factorization.

869080687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1161216, while the sum is 52.

The square root of 869080687 is about 29480.1744737035. The cubic root of 869080687 is about 954.3039021574.

The spelling of 869080687 in words is "eight hundred sixty-nine million, eighty thousand, six hundred eighty-seven".