884489 has 2 divisors, whose sum is σ = 884490. Its totient is φ = 884488.

The previous prime is 884483. The next prime is 884491. The reversal of 884489 is 984488.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 824464 + 60025 = 908^2 + 245^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-884489 is a prime.

It is a super-2 number, since 2×884489² = 1564641582242, which contains 22 as substring.

Together with 884491, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (884483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 442244 + 442245.

It is an arithmetic number, because the mean of its divisors is an integer number (442245).

2⁸⁸⁴⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

884489 is a deficient number, since it is larger than the sum of its proper divisors (1).

884489 is an equidigital number, since it uses as much as digits as its factorization.

884489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 73728, while the sum is 41.

The square root of 884489 is about 940.4727534597. The cubic root of 884489 is about 95.9910654301.

Subtracting 884489 from its reverse (984488), we obtain a palindrome (99999).

The spelling of 884489 in words is "eight hundred eighty-four thousand, four hundred eighty-nine".