687300487 has 2 divisors, whose sum is σ = 687300488. Its totient is φ = 687300486.

The previous prime is 687300413. The next prime is 687300491. The reversal of 687300487 is 784003786.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-687300487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (687300407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 343650243 + 343650244.

It is an arithmetic number, because the mean of its divisors is an integer number (343650244).

Almost surely, 2^687300487 is an apocalyptic number.

687300487 is a deficient number, since it is larger than the sum of its proper divisors (1).

687300487 is an equidigital number, since it uses as much as digits as its factorization.

687300487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 225792, while the sum is 43.

The square root of 687300487 is about 26216.4163645606. The cubic root of 687300487 is about 882.5016997669.

The spelling of 687300487 in words is "six hundred eighty-seven million, three hundred thousand, four hundred eighty-seven".