867487 has 2 divisors, whose sum is σ = 867488. Its totient is φ = 867486.

The previous prime is 867467. The next prime is 867509. The reversal of 867487 is 784768.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 867487 - 2¹⁹ = 343199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (867457) 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, 433743 + 433744.

It is an arithmetic number, because the mean of its divisors is an integer number (433744).

2⁸⁶⁷⁴⁸⁷ is an apocalyptic number.

867487 is a deficient number, since it is larger than the sum of its proper divisors (1).

867487 is an equidigital number, since it uses as much as digits as its factorization.

867487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75264, while the sum is 40.

The square root of 867487 is about 931.3898217181. The cubic root of 867487 is about 95.3720223209.

The spelling of 867487 in words is "eight hundred sixty-seven thousand, four hundred eighty-seven".