601687 has 2 divisors, whose sum is σ = 601688. Its totient is φ = 601686.

The previous prime is 601669. The next prime is 601697. The reversal of 601687 is 786106.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-601687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (601607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300843 + 300844.

It is an arithmetic number, because the mean of its divisors is an integer number (300844).

2⁶⁰¹⁶⁸⁷ is an apocalyptic number.

601687 is a deficient number, since it is larger than the sum of its proper divisors (1).

601687 is an equidigital number, since it uses as much as digits as its factorization.

601687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 601687 is about 775.6848586894. The cubic root of 601687 is about 84.4222409435.

The spelling of 601687 in words is "six hundred one thousand, six hundred eighty-seven".