386694813 has 8 divisors (see below), whose sum is σ = 516444928. Its totient is φ = 257370624.

The previous prime is 386694779. The next prime is 386694817. The reversal of 386694813 is 318496683.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 386694813 - 2⁸ = 386694557 is a prime.

It is a super-2 number, since 2×386694813² = 299065756802209938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (386694817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104356 + ... + 107997.

It is an arithmetic number, because the mean of its divisors is an integer number (64555616).

Almost surely, 2^386694813 is an apocalyptic number.

It is an amenable number.

386694813 is a deficient number, since it is larger than the sum of its proper divisors (129750115).

386694813 is a wasteful number, since it uses less digits than its factorization.

386694813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212963.

The product of its digits is 746496, while the sum is 48.

The square root of 386694813 is about 19664.5572795321. The cubic root of 386694813 is about 728.5445530428.

The spelling of 386694813 in words is "three hundred eighty-six million, six hundred ninety-four thousand, eight hundred thirteen".