461687 has 2 divisors, whose sum is σ = 461688. Its totient is φ = 461686.

The previous prime is 461677. The next prime is 461689. The reversal of 461687 is 786164.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-461687 is a prime.

Together with 461689, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 461687.

It is not a weakly prime, because it can be changed into another prime (461689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230843 + 230844.

It is an arithmetic number, because the mean of its divisors is an integer number (230844).

2⁴⁶¹⁶⁸⁷ is an apocalyptic number.

461687 is a deficient number, since it is larger than the sum of its proper divisors (1).

461687 is an equidigital number, since it uses as much as digits as its factorization.

461687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 32.

The square root of 461687 is about 679.4755330400. The cubic root of 461687 is about 77.2886785566.

The spelling of 461687 in words is "four hundred sixty-one thousand, six hundred eighty-seven".