387834 has 16 divisors (see below), whose sum is σ = 797088. Its totient is φ = 125712.

The previous prime is 387799. The next prime is 387839. The reversal of 387834 is 438783.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 387795 and 387804.

It is not an unprimeable number, because it can be changed into a prime (387839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 652 + ... + 1095.

It is an arithmetic number, because the mean of its divisors is an integer number (49818).

2³⁸⁷⁸³⁴ is an apocalyptic number.

387834 is an abundant number, since it is smaller than the sum of its proper divisors (409254).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

387834 is a wasteful number, since it uses less digits than its factorization.

387834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1789.

The product of its digits is 16128, while the sum is 33.

The square root of 387834 is about 622.7631973712. The cubic root of 387834 is about 72.9259272411.

It can be divided in two parts, 387 and 834, that added together give a palindrome (1221).

The spelling of 387834 in words is "three hundred eighty-seven thousand, eight hundred thirty-four".