386845663 has 4 divisors (see below), whose sum is σ = 387960840. Its totient is φ = 385730488.

The previous prime is 386845661. The next prime is 386845691. The reversal of 386845663 is 366548683.

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

It is a cyclic number.

It is not a de Polignac number, because 386845663 - 2¹ = 386845661 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 (386845661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 557068 + ... + 557761.

It is an arithmetic number, because the mean of its divisors is an integer number (96990210).

Almost surely, 2^386845663 is an apocalyptic number.

386845663 is a deficient number, since it is larger than the sum of its proper divisors (1115177).

386845663 is a wasteful number, since it uses less digits than its factorization.

386845663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115176.

The product of its digits is 2488320, while the sum is 49.

The square root of 386845663 is about 19668.3924864235. The cubic root of 386845663 is about 728.6392760254.

Adding to 386845663 its product of digits (2488320), we get a palindrome (389333983).

The spelling of 386845663 in words is "three hundred eighty-six million, eight hundred forty-five thousand, six hundred sixty-three".