989834 has 4 divisors (see below), whose sum is σ = 1484754. Its totient is φ = 494916.

The previous prime is 989831. The next prime is 989837. The reversal of 989834 is 438989.

989834 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 is an interprime number because it is at equal distance from previous prime (989831) and next prime (989837).

It can be written as a sum of positive squares in only one way, i.e., 896809 + 93025 = 947^2 + 305^2 .

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 989791 and 989800.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 989834.

It is not an unprimeable number, because it can be changed into a prime (989831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247457 + ... + 247460.

2⁹⁸⁹⁸³⁴ is an apocalyptic number.

989834 is a deficient number, since it is larger than the sum of its proper divisors (494920).

989834 is a wasteful number, since it uses less digits than its factorization.

989834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494919.

The product of its digits is 62208, while the sum is 41.

The square root of 989834 is about 994.9040154708. The cubic root of 989834 is about 99.6599784975.

The spelling of 989834 in words is "nine hundred eighty-nine thousand, eight hundred thirty-four".