13007987 has 2 divisors, whose sum is σ = 13007988. Its totient is φ = 13007986.

The previous prime is 13007971. The next prime is 13008019. The reversal of 13007987 is 78970031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13007987 - 2⁴ = 13007971 is a prime.

It is a zygodrome in base 2.

It is not a weakly prime, because it can be changed into another prime (13007087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6503993 + 6503994.

It is an arithmetic number, because the mean of its divisors is an integer number (6503994).

Almost surely, 2^13007987 is an apocalyptic number.

13007987 is a deficient number, since it is larger than the sum of its proper divisors (1).

13007987 is an equidigital number, since it uses as much as digits as its factorization.

13007987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 13007987 is about 3606.6587030103. The cubic root of 13007987 is about 235.1816130423.

The spelling of 13007987 in words is "thirteen million, seven thousand, nine hundred eighty-seven".