386855393 has 2 divisors, whose sum is σ = 386855394. Its totient is φ = 386855392.

The previous prime is 386855363. The next prime is 386855407. The reversal of 386855393 is 393558683.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 316412944 + 70442449 = 17788^2 + 8393^2 .

It is a cyclic number.

It is not a de Polignac number, because 386855393 - 2¹⁴ = 386839009 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (386855353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193427696 + 193427697.

It is an arithmetic number, because the mean of its divisors is an integer number (193427697).

Almost surely, 2^386855393 is an apocalyptic number.

It is an amenable number.

386855393 is a deficient number, since it is larger than the sum of its proper divisors (1).

386855393 is an equidigital number, since it uses as much as digits as its factorization.

386855393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2332800, while the sum is 50.

The square root of 386855393 is about 19668.6398360436. The cubic root of 386855393 is about 728.6453849222.

The spelling of 386855393 in words is "three hundred eighty-six million, eight hundred fifty-five thousand, three hundred ninety-three".