164576873 has 2 divisors, whose sum is σ = 164576874. Its totient is φ = 164576872.

The previous prime is 164576843. The next prime is 164576921. The reversal of 164576873 is 378675461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 164531929 + 44944 = 12827^2 + 212^2 .

It is a cyclic number.

It is not a de Polignac number, because 164576873 - 2¹⁸ = 164314729 is a prime.

It is not a weakly prime, because it can be changed into another prime (164576833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82288436 + 82288437.

It is an arithmetic number, because the mean of its divisors is an integer number (82288437).

Almost surely, 2^164576873 is an apocalyptic number.

It is an amenable number.

164576873 is a deficient number, since it is larger than the sum of its proper divisors (1).

164576873 is an equidigital number, since it uses as much as digits as its factorization.

164576873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 846720, while the sum is 47.

The square root of 164576873 is about 12828.7518098995. The cubic root of 164576873 is about 548.0114115318.

The spelling of 164576873 in words is "one hundred sixty-four million, five hundred seventy-six thousand, eight hundred seventy-three".