884138 has 4 divisors (see below), whose sum is σ = 1326210. Its totient is φ = 442068.

The previous prime is 884131. The next prime is 884159. The reversal of 884138 is 831488.

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

It can be written as a sum of positive squares in only one way, i.e., 508369 + 375769 = 713^2 + 613^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 884138.

It is not an unprimeable number, because it can be changed into a prime (884131) by changing a digit.

884138 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 as a sum of consecutive naturals, namely, 221033 + ... + 221036.

2⁸⁸⁴¹³⁸ is an apocalyptic number.

884138 is a deficient number, since it is larger than the sum of its proper divisors (442072).

884138 is a wasteful number, since it uses less digits than its factorization.

884138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442071.

The product of its digits is 6144, while the sum is 32.

The square root of 884138 is about 940.2861266657. The cubic root of 884138 is about 95.9783660742.

Subtracting from 884138 its reverse (831488), we obtain a triangular number (52650 = T₃₂₄).

The spelling of 884138 in words is "eight hundred eighty-four thousand, one hundred thirty-eight".