884991 has 4 divisors (see below), whose sum is σ = 1179992. Its totient is φ = 589992.

The previous prime is 884987. The next prime is 884999. The reversal of 884991 is 199488.

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

It is not a de Polignac number, because 884991 - 2² = 884987 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (884999) 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, 147496 + ... + 147501.

It is an arithmetic number, because the mean of its divisors is an integer number (294998).

2⁸⁸⁴⁹⁹¹ is an apocalyptic number.

884991 is a deficient number, since it is larger than the sum of its proper divisors (295001).

884991 is a wasteful number, since it uses less digits than its factorization.

884991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295000.

The product of its digits is 20736, while the sum is 39.

The square root of 884991 is about 940.7396026531. The cubic root of 884991 is about 96.0092222043.

The spelling of 884991 in words is "eight hundred eighty-four thousand, nine hundred ninety-one".