96640987 has 2 divisors, whose sum is σ = 96640988. Its totient is φ = 96640986.

The previous prime is 96640979. The next prime is 96641029. The reversal of 96640987 is 78904669.

It is a weak prime.

It is an emirp because it is prime and its reverse (78904669) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 96640987 - 2³ = 96640979 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 96640987.

It is not a weakly prime, because it can be changed into another prime (96140987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48320493 + 48320494.

It is an arithmetic number, because the mean of its divisors is an integer number (48320494).

Almost surely, 2^96640987 is an apocalyptic number.

96640987 is a deficient number, since it is larger than the sum of its proper divisors (1).

96640987 is an equidigital number, since it uses as much as digits as its factorization.

96640987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653184, while the sum is 49.

The square root of 96640987 is about 9830.6147824030. The cubic root of 96640987 is about 458.9025302376.

The spelling of 96640987 in words is "ninety-six million, six hundred forty thousand, nine hundred eighty-seven".