388247 has 4 divisors (see below), whose sum is σ = 397320. Its totient is φ = 379176.

The previous prime is 388237. The next prime is 388253. The reversal of 388247 is 742883.

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 388247 - 2⁴ = 388231 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 388247.

It is not an unprimeable number, because it can be changed into a prime (388237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4472 + ... + 4557.

It is an arithmetic number, because the mean of its divisors is an integer number (99330).

2³⁸⁸²⁴⁷ is an apocalyptic number.

388247 is a deficient number, since it is larger than the sum of its proper divisors (9073).

388247 is an equidigital number, since it uses as much as digits as its factorization.

388247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9072.

The product of its digits is 10752, while the sum is 32.

The square root of 388247 is about 623.0946958529. The cubic root of 388247 is about 72.9518040538.

The spelling of 388247 in words is "three hundred eighty-eight thousand, two hundred forty-seven".