386164409 has 2 divisors, whose sum is σ = 386164410. Its totient is φ = 386164408.

The previous prime is 386164399. The next prime is 386164421. The reversal of 386164409 is 904461683.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 263575225 + 122589184 = 16235^2 + 11072^2 .

It is a cyclic number.

It is not a de Polignac number, because 386164409 - 2¹⁶ = 386098873 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (386164459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193082204 + 193082205.

It is an arithmetic number, because the mean of its divisors is an integer number (193082205).

Almost surely, 2^386164409 is an apocalyptic number.

It is an amenable number.

386164409 is a deficient number, since it is larger than the sum of its proper divisors (1).

386164409 is an equidigital number, since it uses as much as digits as its factorization.

386164409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 386164409 is about 19651.0663578341. The cubic root of 386164409 is about 728.2113016484.

The spelling of 386164409 in words is "three hundred eighty-six million, one hundred sixty-four thousand, four hundred nine".