387877 has 4 divisors (see below), whose sum is σ = 443296. Its totient is φ = 332460.

The previous prime is 387857. The next prime is 387911. The reversal of 387877 is 778783.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 778783 = 103 ⋅7561.

It is a cyclic number.

It is not a de Polignac number, because 387877 - 2⁷ = 387749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387857) 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, 27699 + ... + 27712.

It is an arithmetic number, because the mean of its divisors is an integer number (110824).

2³⁸⁷⁸⁷⁷ is an apocalyptic number.

It is an amenable number.

387877 is a deficient number, since it is larger than the sum of its proper divisors (55419).

387877 is an equidigital number, since it uses as much as digits as its factorization.

387877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55418.

The product of its digits is 65856, while the sum is 40.

The square root of 387877 is about 622.7977199701. The cubic root of 387877 is about 72.9286222936.

The spelling of 387877 in words is "three hundred eighty-seven thousand, eight hundred seventy-seven".