1327603987 has 2 divisors, whose sum is σ = 1327603988. Its totient is φ = 1327603986.

The previous prime is 1327603951. The next prime is 1327604063. The reversal of 1327603987 is 7893067231.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1327603987 - 2²³ = 1319215379 is a prime.

It is not a weakly prime, because it can be changed into another prime (1327603087) 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, 663801993 + 663801994.

It is an arithmetic number, because the mean of its divisors is an integer number (663801994).

Almost surely, 2^1327603987 is an apocalyptic number.

1327603987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1327603987 is an equidigital number, since it uses as much as digits as its factorization.

1327603987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 381024, while the sum is 46.

The square root of 1327603987 is about 36436.3004022088. The cubic root of 1327603987 is about 1099.0636624293.

The spelling of 1327603987 in words is "one billion, three hundred twenty-seven million, six hundred three thousand, nine hundred eighty-seven".