989624 has 16 divisors (see below), whose sum is σ = 1875120. Its totient is φ = 489600.

The previous prime is 989623. The next prime is 989629. The reversal of 989624 is 426989.

It is a super-2 number, since 2×989624² = 1958711322752, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989623) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 224 + ... + 1424.

It is an arithmetic number, because the mean of its divisors is an integer number (117195).

2⁹⁸⁹⁶²⁴ is an apocalyptic number.

It is an amenable number.

989624 is a deficient number, since it is larger than the sum of its proper divisors (885496).

989624 is a wasteful number, since it uses less digits than its factorization.

989624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1310 (or 1306 counting only the distinct ones).

The product of its digits is 31104, while the sum is 38.

The square root of 989624 is about 994.7984720535. The cubic root of 989624 is about 99.6529301521.

The spelling of 989624 in words is "nine hundred eighty-nine thousand, six hundred twenty-four".