387147 has 4 divisors (see below), whose sum is σ = 516200. Its totient is φ = 258096.

The previous prime is 387137. The next prime is 387151. The reversal of 387147 is 741783.

It is a happy number.

387147 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 387147 - 2⁶ = 387083 is a prime.

It is a D-number.

It is a Duffinian number.

387147 is strictly pandigital in base 7.

It is not an unprimeable number, because it can be changed into a prime (387137) 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, 64522 + ... + 64527.

It is an arithmetic number, because the mean of its divisors is an integer number (129050).

2³⁸⁷¹⁴⁷ is an apocalyptic number.

387147 is a deficient number, since it is larger than the sum of its proper divisors (129053).

387147 is a wasteful number, since it uses less digits than its factorization.

387147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129052.

The product of its digits is 4704, while the sum is 30.

The square root of 387147 is about 622.2113788738. The cubic root of 387147 is about 72.8828420352.

The spelling of 387147 in words is "three hundred eighty-seven thousand, one hundred forty-seven".