989504 has 14 divisors (see below), whose sum is σ = 1963674. Its totient is φ = 494720.

The previous prime is 989479. The next prime is 989507. The reversal of 989504 is 405989.

It can be written as a sum of positive squares in only one way, i.e., 719104 + 270400 = 848^2 + 520^2 .

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 989504.

It is not an unprimeable number, because it can be changed into a prime (989507) by changing a digit.

989504 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7667 + ... + 7794.

2⁹⁸⁹⁵⁰⁴ is an apocalyptic number.

It is an amenable number.

989504 is a deficient number, since it is larger than the sum of its proper divisors (974170).

989504 is a wasteful number, since it uses less digits than its factorization.

989504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15473 (or 15463 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 989504 is about 994.7381565015. The cubic root of 989504 is about 99.6489020785.

The spelling of 989504 in words is "nine hundred eighty-nine thousand, five hundred four".