9699887 has 2 divisors, whose sum is σ = 9699888. Its totient is φ = 9699886.

The previous prime is 9699853. The next prime is 9699889. The reversal of 9699887 is 7889969.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9699887 - 2⁸ = 9699631 is a prime.

Together with 9699889, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9699889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4849943 + 4849944.

It is an arithmetic number, because the mean of its divisors is an integer number (4849944).

Almost surely, 2^9699887 is an apocalyptic number.

9699887 is a deficient number, since it is larger than the sum of its proper divisors (1).

9699887 is an equidigital number, since it uses as much as digits as its factorization.

9699887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1959552, while the sum is 56.

The square root of 9699887 is about 3114.4641593700. The cubic root of 9699887 is about 213.2662953967.

The spelling of 9699887 in words is "nine million, six hundred ninety-nine thousand, eight hundred eighty-seven".