60665987 has 2 divisors, whose sum is σ = 60665988. Its totient is φ = 60665986.

The previous prime is 60665981. The next prime is 60666007. The reversal of 60665987 is 78956606.

60665987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 60665987 - 2¹⁸ = 60403843 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (60665981) 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, 30332993 + 30332994.

It is an arithmetic number, because the mean of its divisors is an integer number (30332994).

Almost surely, 2^60665987 is an apocalyptic number.

60665987 is a deficient number, since it is larger than the sum of its proper divisors (1).

60665987 is an equidigital number, since it uses as much as digits as its factorization.

60665987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 544320, while the sum is 47.

The square root of 60665987 is about 7788.8373330042. The cubic root of 60665987 is about 392.9299104310.

The spelling of 60665987 in words is "sixty million, six hundred sixty-five thousand, nine hundred eighty-seven".