386749 has 4 divisors (see below), whose sum is σ = 421920. Its totient is φ = 351580.

The previous prime is 386747. The next prime is 386777. The reversal of 386749 is 947683.

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 a cyclic number.

It is not a de Polignac number, because 386749 - 2¹ = 386747 is a prime.

It is a Duffinian number.

386749 is a lucky number.

It is a zygodrome in base 5.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (386747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17569 + ... + 17590.

It is an arithmetic number, because the mean of its divisors is an integer number (105480).

2³⁸⁶⁷⁴⁹ is an apocalyptic number.

It is an amenable number.

386749 is a deficient number, since it is larger than the sum of its proper divisors (35171).

386749 is a wasteful number, since it uses less digits than its factorization.

386749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35170.

The product of its digits is 36288, while the sum is 37.

The square root of 386749 is about 621.8914696312. The cubic root of 386749 is about 72.8578581428.

It can be divided in two parts, 38674 and 9, that added together give a palindrome (38683).

The spelling of 386749 in words is "three hundred eighty-six thousand, seven hundred forty-nine".