386509117 has 2 divisors, whose sum is σ = 386509118. Its totient is φ = 386509116.

The previous prime is 386509051. The next prime is 386509139. The reversal of 386509117 is 711905683.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 249829636 + 136679481 = 15806^2 + 11691^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-386509117 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 386509117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (386509157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193254558 + 193254559.

It is an arithmetic number, because the mean of its divisors is an integer number (193254559).

Almost surely, 2^386509117 is an apocalyptic number.

It is an amenable number.

386509117 is a deficient number, since it is larger than the sum of its proper divisors (1).

386509117 is an equidigital number, since it uses as much as digits as its factorization.

386509117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 386509117 is about 19659.8351213839. The cubic root of 386509117 is about 728.4279154376.

The spelling of 386509117 in words is "three hundred eighty-six million, five hundred nine thousand, one hundred seventeen".