387867 has 4 divisors (see below), whose sum is σ = 517160. Its totient is φ = 258576.

The previous prime is 387857. The next prime is 387911. The reversal of 387867 is 768783.

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

It is not a de Polignac number, because 387867 - 2¹⁵ = 355099 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (387857) 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, 64642 + ... + 64647.

It is an arithmetic number, because the mean of its divisors is an integer number (129290).

2³⁸⁷⁸⁶⁷ is an apocalyptic number.

387867 is a deficient number, since it is larger than the sum of its proper divisors (129293).

387867 is a wasteful number, since it uses less digits than its factorization.

387867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129292.

The product of its digits is 56448, while the sum is 39.

The square root of 387867 is about 622.7896916295. The cubic root of 387867 is about 72.9279955550.

The spelling of 387867 in words is "three hundred eighty-seven thousand, eight hundred sixty-seven".