167966 has 4 divisors (see below), whose sum is σ = 251952. Its totient is φ = 83982.

The previous prime is 167953. The next prime is 167971. The reversal of 167966 is 669761.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 669761 = 53 ⋅12637.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41990 + ... + 41993.

It is an arithmetic number, because the mean of its divisors is an integer number (62988).

2¹⁶⁷⁹⁶⁶ is an apocalyptic number.

167966 is a deficient number, since it is larger than the sum of its proper divisors (83986).

167966 is an equidigital number, since it uses as much as digits as its factorization.

167966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83985.

The product of its digits is 13608, while the sum is 35.

The square root of 167966 is about 409.8365527866. The cubic root of 167966 is about 55.1747609185.

The spelling of 167966 in words is "one hundred sixty-seven thousand, nine hundred sixty-six".