9980624 has 20 divisors (see below), whose sum is σ = 20355840. Its totient is φ = 4727520.

The previous prime is 9980603. The next prime is 9980629. The reversal of 9980624 is 4260899.

It is a super-2 number, since 2×9980624² = 199225710858752, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9980629) 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, 16112 + ... + 16719.

It is an arithmetic number, because the mean of its divisors is an integer number (1017792).

Almost surely, 2^9980624 is an apocalyptic number.

It is an amenable number.

9980624 is an abundant number, since it is smaller than the sum of its proper divisors (10375216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9980624 is a wasteful number, since it uses less digits than its factorization.

9980624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32858 (or 32852 counting only the distinct ones).

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

The square root of 9980624 is about 3159.2125601168. The cubic root of 9980624 is about 215.3042312802.

The spelling of 9980624 in words is "nine million, nine hundred eighty thousand, six hundred twenty-four".