163679 has 2 divisors, whose sum is σ = 163680. Its totient is φ = 163678.

The previous prime is 163673. The next prime is 163697. The reversal of 163679 is 976361.

Together with next prime (163697) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 163679 - 2¹⁶ = 98143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81839 + 81840.

It is an arithmetic number, because the mean of its divisors is an integer number (81840).

2¹⁶³⁶⁷⁹ is an apocalyptic number.

163679 is a deficient number, since it is larger than the sum of its proper divisors (1).

163679 is an equidigital number, since it uses as much as digits as its factorization.

163679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6804, while the sum is 32.

The square root of 163679 is about 404.5726140015. The cubic root of 163679 is about 54.7013008435.

The spelling of 163679 in words is "one hundred sixty-three thousand, six hundred seventy-nine".