984869 has 4 divisors (see below), whose sum is σ = 1018860. Its totient is φ = 950880.

The previous prime is 984859. The next prime is 984877. The reversal of 984869 is 968489.

984869 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 240100 + 744769 = 490^2 + 863^2 .

It is a cyclic number.

It is not a de Polignac number, because 984869 - 2⁴ = 984853 is a prime.

It is a super-2 number, since 2×984869² = 1939933894322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (984859) 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, 16952 + ... + 17009.

It is an arithmetic number, because the mean of its divisors is an integer number (254715).

2⁹⁸⁴⁸⁶⁹ is an apocalyptic number.

It is an amenable number.

984869 is a deficient number, since it is larger than the sum of its proper divisors (33991).

984869 is a wasteful number, since it uses less digits than its factorization.

984869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33990.

The product of its digits is 124416, while the sum is 44.

The square root of 984869 is about 992.4056630229. The cubic root of 984869 is about 99.4930678739.

The spelling of 984869 in words is "nine hundred eighty-four thousand, eight hundred sixty-nine".