386538879 has 8 divisors (see below), whose sum is σ = 523077760. Its totient is φ = 253846296.

The previous prime is 386538871. The next prime is 386538881. The reversal of 386538879 is 978835683.

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

It is not a de Polignac number, because 386538879 - 2³ = 386538871 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 (386538871) 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, 961339 + ... + 961740.

It is an arithmetic number, because the mean of its divisors is an integer number (65384720).

Almost surely, 2^386538879 is an apocalyptic number.

386538879 is a deficient number, since it is larger than the sum of its proper divisors (136538881).

386538879 is a wasteful number, since it uses less digits than its factorization.

386538879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1923149.

The product of its digits is 8709120, while the sum is 57.

The square root of 386538879 is about 19660.5920307604. The cubic root of 386538879 is about 728.4466117755.

The spelling of 386538879 in words is "three hundred eighty-six million, five hundred thirty-eight thousand, eight hundred seventy-nine".