386540851 has 2 divisors, whose sum is σ = 386540852. Its totient is φ = 386540850.

The previous prime is 386540839. The next prime is 386540857. The reversal of 386540851 is 158045683.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-386540851 is a prime.

It is not a weakly prime, because it can be changed into another prime (386540857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193270425 + 193270426.

It is an arithmetic number, because the mean of its divisors is an integer number (193270426).

Almost surely, 2^386540851 is an apocalyptic number.

386540851 is a deficient number, since it is larger than the sum of its proper divisors (1).

386540851 is an equidigital number, since it uses as much as digits as its factorization.

386540851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 386540851 is about 19660.6421817803. The cubic root of 386540851 is about 728.4478505421.

The spelling of 386540851 in words is "three hundred eighty-six million, five hundred forty thousand, eight hundred fifty-one".