387879 has 4 divisors (see below), whose sum is σ = 517176. Its totient is φ = 258584.

The previous prime is 387857. The next prime is 387911. The reversal of 387879 is 978783.

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 387879 - 2⁸ = 387623 is a prime.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 387879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387839) 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, 64644 + ... + 64649.

It is an arithmetic number, because the mean of its divisors is an integer number (129294).

2³⁸⁷⁸⁷⁹ is an apocalyptic number.

387879 is a deficient number, since it is larger than the sum of its proper divisors (129297).

387879 is a wasteful number, since it uses less digits than its factorization.

387879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129296.

The product of its digits is 84672, while the sum is 42.

The square root of 387879 is about 622.7993256258. The cubic root of 387879 is about 72.9287476400.

The spelling of 387879 in words is "three hundred eighty-seven thousand, eight hundred seventy-nine".