164674379 has 2 divisors, whose sum is σ = 164674380. Its totient is φ = 164674378.

The previous prime is 164674357. The next prime is 164674397. The reversal of 164674379 is 973476461.

It is a happy number.

Together with next prime (164674397) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 164674379 - 2²⁴ = 147897163 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (164674399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82337189 + 82337190.

It is an arithmetic number, because the mean of its divisors is an integer number (82337190).

Almost surely, 2^164674379 is an apocalyptic number.

164674379 is a deficient number, since it is larger than the sum of its proper divisors (1).

164674379 is an equidigital number, since it uses as much as digits as its factorization.

164674379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 762048, while the sum is 47.

The square root of 164674379 is about 12832.5515389575. The cubic root of 164674379 is about 548.1196159847.

The spelling of 164674379 in words is "one hundred sixty-four million, six hundred seventy-four thousand, three hundred seventy-nine".