164477 has 2 divisors, whose sum is σ = 164478. Its totient is φ = 164476.

The previous prime is 164471. The next prime is 164503. The reversal of 164477 is 774461.

It is a happy number.

164477 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89401 + 75076 = 299^2 + 274^2 .

It is a cyclic number.

It is not a de Polignac number, because 164477 - 2⁶ = 164413 is a prime.

It is a Chen prime.

It is an Ulam number.

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 164477.

It is not a weakly prime, because it can be changed into another prime (164471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82238 + 82239.

It is an arithmetic number, because the mean of its divisors is an integer number (82239).

2¹⁶⁴⁴⁷⁷ is an apocalyptic number.

It is an amenable number.

164477 is a deficient number, since it is larger than the sum of its proper divisors (1).

164477 is an equidigital number, since it uses as much as digits as its factorization.

164477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4704, while the sum is 29.

The square root of 164477 is about 405.5576407861. The cubic root of 164477 is about 54.7900536053.

The spelling of 164477 in words is "one hundred sixty-four thousand, four hundred seventy-seven".