386945173 has 4 divisors (see below), whose sum is σ = 400288140. Its totient is φ = 373602208.

The previous prime is 386945161. The next prime is 386945189. The reversal of 386945173 is 371549683.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 65173329 + 321771844 = 8073^2 + 17938^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-386945173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (386945113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6671440 + ... + 6671497.

It is an arithmetic number, because the mean of its divisors is an integer number (100072035).

Almost surely, 2^386945173 is an apocalyptic number.

It is an amenable number.

386945173 is a deficient number, since it is larger than the sum of its proper divisors (13342967).

386945173 is a wasteful number, since it uses less digits than its factorization.

386945173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13342966.

The product of its digits is 544320, while the sum is 46.

The square root of 386945173 is about 19670.9220170281. The cubic root of 386945173 is about 728.7017476905.

The spelling of 386945173 in words is "three hundred eighty-six million, nine hundred forty-five thousand, one hundred seventy-three".