9914987 has 2 divisors, whose sum is σ = 9914988. Its totient is φ = 9914986.

The previous prime is 9914977. The next prime is 9915041. The reversal of 9914987 is 7894199.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9914987 is a prime.

It is not a weakly prime, because it can be changed into another prime (9914917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4957493 + 4957494.

It is an arithmetic number, because the mean of its divisors is an integer number (4957494).

Almost surely, 2^9914987 is an apocalyptic number.

9914987 is a deficient number, since it is larger than the sum of its proper divisors (1).

9914987 is an equidigital number, since it uses as much as digits as its factorization.

9914987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 47.

The square root of 9914987 is about 3148.8072344937. The cubic root of 9914987 is about 214.8312142032.

It can be divided in two parts, 9914 and 987, that added together give a palindrome (10901).

The spelling of 9914987 in words is "nine million, nine hundred fourteen thousand, nine hundred eighty-seven".