838489 has 4 divisors (see below), whose sum is σ = 882640. Its totient is φ = 794340.

The previous prime is 838483. The next prime is 838517. The reversal of 838489 is 984838.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-838489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (838483) 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, 22047 + ... + 22084.

It is an arithmetic number, because the mean of its divisors is an integer number (220660).

2⁸³⁸⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

838489 is a deficient number, since it is larger than the sum of its proper divisors (44151).

838489 is a wasteful number, since it uses less digits than its factorization.

838489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44150.

The product of its digits is 55296, while the sum is 40.

The square root of 838489 is about 915.6904498792. The cubic root of 838489 is about 94.2972707642.

The spelling of 838489 in words is "eight hundred thirty-eight thousand, four hundred eighty-nine".