164997 has 24 divisors (see below), whose sum is σ = 285376. Its totient is φ = 93312.

The previous prime is 164987. The next prime is 164999. The reversal of 164997 is 799461.

164997 is a `hidden beast` number, since 1 + 649 + 9 + 7 = 666.

164997 is nontrivially palindromic in base 2 and base 8.

It is not a de Polignac number, because 164997 - 2¹⁰ = 163973 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 164997.

It is not an unprimeable number, because it can be changed into a prime (164999) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1653 + ... + 1749.

2¹⁶⁴⁹⁹⁷ is an apocalyptic number.

It is an amenable number.

164997 is a deficient number, since it is larger than the sum of its proper divisors (120379).

164997 is an frugal number, since it uses more digits than its factorization.

164997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119 (or 107 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 164997 is about 406.1982274703. The cubic root of 164997 is about 54.8477331098.

The spelling of 164997 in words is "one hundred sixty-four thousand, nine hundred ninety-seven".