386638683 has 4 divisors (see below), whose sum is σ = 515518248. Its totient is φ = 257759120.

The previous prime is 386638663. The next prime is 386638691. The reversal of 386638683 is 386836683.

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 386638683 - 2¹⁶ = 386573147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (386638613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64439778 + ... + 64439783.

It is an arithmetic number, because the mean of its divisors is an integer number (128879562).

Almost surely, 2^386638683 is an apocalyptic number.

386638683 is a deficient number, since it is larger than the sum of its proper divisors (128879565).

386638683 is a wasteful number, since it uses less digits than its factorization.

386638683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128879564.

The product of its digits is 2985984, while the sum is 51.

The square root of 386638683 is about 19663.1300407641. The cubic root of 386638683 is about 728.5093011394.

The spelling of 386638683 in words is "three hundred eighty-six million, six hundred thirty-eight thousand, six hundred eighty-three".