980720 has 80 divisors (see below), whose sum is σ = 2624832. Its totient is φ = 337920.

The previous prime is 980719. The next prime is 980729. The reversal of 980720 is 27089.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 980720.

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 980720.

It is not an unprimeable number, because it can be changed into a prime (980729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23900 + ... + 23940.

2⁹⁸⁰⁷²⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 980720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1312416).

980720 is an abundant number, since it is smaller than the sum of its proper divisors (1644112).

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

980720 is a wasteful number, since it uses less digits than its factorization.

980720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90 (or 84 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 980720 is about 990.3130818080. The cubic root of 980720 is about 99.3531583130.

It can be divided in two parts, 980 and 720, that multiplied together give a square (705600 = 840²).

The spelling of 980720 in words is "nine hundred eighty thousand, seven hundred twenty".