167997 has 8 divisors (see below), whose sum is σ = 231840. Its totient is φ = 108080.

The previous prime is 167987. The next prime is 168013. The reversal of 167997 is 799761.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 167997 - 2¹⁰ = 166973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (167917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 879 + ... + 1052.

It is an arithmetic number, because the mean of its divisors is an integer number (28980).

2¹⁶⁷⁹⁹⁷ is an apocalyptic number.

It is an amenable number.

167997 is a deficient number, since it is larger than the sum of its proper divisors (63843).

167997 is a wasteful number, since it uses less digits than its factorization.

167997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1963.

The product of its digits is 23814, while the sum is 39.

The square root of 167997 is about 409.8743709968. The cubic root of 167997 is about 55.1781550823.

The spelling of 167997 in words is "one hundred sixty-seven thousand, nine hundred ninety-seven".