386885647 has 2 divisors, whose sum is σ = 386885648. Its totient is φ = 386885646.

The previous prime is 386885641. The next prime is 386885669. The reversal of 386885647 is 746588683.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 386885647 - 2¹⁹ = 386361359 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (386885641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193442823 + 193442824.

It is an arithmetic number, because the mean of its divisors is an integer number (193442824).

Almost surely, 2^386885647 is an apocalyptic number.

386885647 is a deficient number, since it is larger than the sum of its proper divisors (1).

386885647 is an equidigital number, since it uses as much as digits as its factorization.

386885647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7741440, while the sum is 55.

The square root of 386885647 is about 19669.4089133354. The cubic root of 386885647 is about 728.6643789815.

The spelling of 386885647 in words is "three hundred eighty-six million, eight hundred eighty-five thousand, six hundred forty-seven".