989404 has 24 divisors (see below), whose sum is σ = 1905120. Its totient is φ = 446784.

The previous prime is 989381. The next prime is 989411. The reversal of 989404 is 404989.

It is a self number, because there is not a number n which added to its sum of digits gives 989404.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2577 + ... + 2935.

It is an arithmetic number, because the mean of its divisors is an integer number (79380).

2⁹⁸⁹⁴⁰⁴ is an apocalyptic number.

It is an amenable number.

989404 is a deficient number, since it is larger than the sum of its proper divisors (915716).

989404 is a wasteful number, since it uses less digits than its factorization.

989404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429 (or 427 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 989404 is about 994.6878907476. The cubic root of 989404 is about 99.6455451017.

The spelling of 989404 in words is "nine hundred eighty-nine thousand, four hundred four".