386913 has 4 divisors (see below), whose sum is σ = 515888. Its totient is φ = 257940.

The previous prime is 386891. The next prime is 386921. The reversal of 386913 is 319683.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 386913 - 2⁹ = 386401 is a prime.

It is a D-number.

It is a Duffinian number.

386913 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (386963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64483 + ... + 64488.

It is an arithmetic number, because the mean of its divisors is an integer number (128972).

2³⁸⁶⁹¹³ is an apocalyptic number.

It is an amenable number.

386913 is a deficient number, since it is larger than the sum of its proper divisors (128975).

386913 is a wasteful number, since it uses less digits than its factorization.

386913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128974.

The product of its digits is 3888, while the sum is 30.

The square root of 386913 is about 622.0233114603. The cubic root of 386913 is about 72.8681550883.

The spelling of 386913 in words is "three hundred eighty-six thousand, nine hundred thirteen".