387229 has 4 divisors (see below), whose sum is σ = 388476. Its totient is φ = 385984.

The previous prime is 387227. The next prime is 387253. The reversal of 387229 is 922783.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 161604 + 225625 = 402^2 + 475^2 .

It is a cyclic number.

It is not a de Polignac number, because 387229 - 2¹ = 387227 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 387229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387227) 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, 267 + ... + 919.

It is an arithmetic number, because the mean of its divisors is an integer number (97119).

2³⁸⁷²²⁹ is an apocalyptic number.

It is an amenable number.

387229 is a deficient number, since it is larger than the sum of its proper divisors (1247).

387229 is an equidigital number, since it uses as much as digits as its factorization.

387229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1246.

The product of its digits is 6048, while the sum is 31.

The square root of 387229 is about 622.2772693904. The cubic root of 387229 is about 72.8879873427.

It can be divided in two parts, 387 and 229, that added together give a palindrome (616).

The spelling of 387229 in words is "three hundred eighty-seven thousand, two hundred twenty-nine".