164897 has 4 divisors (see below), whose sum is σ = 165780. Its totient is φ = 164016.

The previous prime is 164893. The next prime is 164911. The reversal of 164897 is 798461.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 4096 + 160801 = 64^2 + 401^2 .

It is a cyclic number.

It is not a de Polignac number, because 164897 - 2² = 164893 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38 + ... + 575.

It is an arithmetic number, because the mean of its divisors is an integer number (41445).

2¹⁶⁴⁸⁹⁷ is an apocalyptic number.

It is an amenable number.

164897 is a deficient number, since it is larger than the sum of its proper divisors (883).

164897 is an equidigital number, since it uses as much as digits as its factorization.

164897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882.

The product of its digits is 12096, while the sum is 35.

The square root of 164897 is about 406.0751162039. The cubic root of 164897 is about 54.8366503189.

It can be divided in two parts, 16 and 4897, that added together give a cube (4913 = 17³).

The spelling of 164897 in words is "one hundred sixty-four thousand, eight hundred ninety-seven".