166867 has 2 divisors, whose sum is σ = 166868. Its totient is φ = 166866.

The previous prime is 166861. The next prime is 166871. The reversal of 166867 is 768661.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 166867 - 2⁷ = 166739 is a prime.

It is not a weakly prime, because it can be changed into another prime (166861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83433 + 83434.

It is an arithmetic number, because the mean of its divisors is an integer number (83434).

2¹⁶⁶⁸⁶⁷ is an apocalyptic number.

166867 is a deficient number, since it is larger than the sum of its proper divisors (1).

166867 is an equidigital number, since it uses as much as digits as its factorization.

166867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 34.

The square root of 166867 is about 408.4935740009. The cubic root of 166867 is about 55.0541615227.

The spelling of 166867 in words is "one hundred sixty-six thousand, eight hundred sixty-seven".