14909987 has 2 divisors, whose sum is σ = 14909988. Its totient is φ = 14909986.

The previous prime is 14909959. The next prime is 14910017. The reversal of 14909987 is 78990941.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 14909987 - 2¹⁰ = 14908963 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (14909087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7454993 + 7454994.

It is an arithmetic number, because the mean of its divisors is an integer number (7454994).

Almost surely, 2^14909987 is an apocalyptic number.

14909987 is a deficient number, since it is larger than the sum of its proper divisors (1).

14909987 is an equidigital number, since it uses as much as digits as its factorization.

14909987 is an evil number, because the sum of its binary digits is even.

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

The square root of 14909987 is about 3861.3452319108. The cubic root of 14909987 is about 246.1269036993.

The spelling of 14909987 in words is "fourteen million, nine hundred nine thousand, nine hundred eighty-seven".