80664587 has 2 divisors, whose sum is σ = 80664588. Its totient is φ = 80664586.

The previous prime is 80664539. The next prime is 80664593. The reversal of 80664587 is 78546608.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80664587 - 2⁶ = 80664523 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (80664487) 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, 40332293 + 40332294.

It is an arithmetic number, because the mean of its divisors is an integer number (40332294).

Almost surely, 2^80664587 is an apocalyptic number.

80664587 is a deficient number, since it is larger than the sum of its proper divisors (1).

80664587 is an equidigital number, since it uses as much as digits as its factorization.

80664587 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 322560, while the sum is 44.

The square root of 80664587 is about 8981.3466139549. The cubic root of 80664587 is about 432.0768235431.

The spelling of 80664587 in words is "eighty million, six hundred sixty-four thousand, five hundred eighty-seven".