167641843 has 2 divisors, whose sum is σ = 167641844. Its totient is φ = 167641842.

The previous prime is 167641841. The next prime is 167641849. The reversal of 167641843 is 348146761.

It is a weak prime.

It is an emirp because it is prime and its reverse (348146761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 167641843 - 2¹ = 167641841 is a prime.

Together with 167641841, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 167641796 and 167641805.

It is not a weakly prime, because it can be changed into another prime (167641841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83820921 + 83820922.

It is an arithmetic number, because the mean of its divisors is an integer number (83820922).

Almost surely, 2^167641843 is an apocalyptic number.

167641843 is a deficient number, since it is larger than the sum of its proper divisors (1).

167641843 is an equidigital number, since it uses as much as digits as its factorization.

167641843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 40.

The square root of 167641843 is about 12947.6578190806. The cubic root of 167641843 is about 551.3924420098.

The spelling of 167641843 in words is "one hundred sixty-seven million, six hundred forty-one thousand, eight hundred forty-three".