388147 has 4 divisors (see below), whose sum is σ = 397656. Its totient is φ = 378640.

The previous prime is 388133. The next prime is 388159. The reversal of 388147 is 741883.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 388147 - 2¹⁵ = 355379 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 not an unprimeable number, because it can be changed into a prime (388117) 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, 4693 + ... + 4774.

It is an arithmetic number, because the mean of its divisors is an integer number (99414).

2³⁸⁸¹⁴⁷ is an apocalyptic number.

388147 is a deficient number, since it is larger than the sum of its proper divisors (9509).

388147 is an equidigital number, since it uses as much as digits as its factorization.

388147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9508.

The product of its digits is 5376, while the sum is 31.

The square root of 388147 is about 623.0144460604. The cubic root of 388147 is about 72.9455401661.

It can be divided in two parts, 388 and 147, that added together give a palindrome (535).

The spelling of 388147 in words is "three hundred eighty-eight thousand, one hundred forty-seven".