384877 has 4 divisors (see below), whose sum is σ = 386716. Its totient is φ = 383040.

The previous prime is 384851. The next prime is 384889. The reversal of 384877 is 778483.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 778483 = 89 ⋅8747.

It can be written as a sum of positive squares in 2 ways, for example, as 181476 + 203401 = 426^2 + 451^2 .

It is a cyclic number.

It is not a de Polignac number, because 384877 - 2¹⁵ = 352109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384817) 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, 558 + ... + 1039.

It is an arithmetic number, because the mean of its divisors is an integer number (96679).

2³⁸⁴⁸⁷⁷ is an apocalyptic number.

It is an amenable number.

384877 is a deficient number, since it is larger than the sum of its proper divisors (1839).

384877 is a wasteful number, since it uses less digits than its factorization.

384877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1838.

The product of its digits is 37632, while the sum is 37.

The square root of 384877 is about 620.3845581573. The cubic root of 384877 is about 72.7401154877.

The spelling of 384877 in words is "three hundred eighty-four thousand, eight hundred seventy-seven".