1007720 has 64 divisors (see below), whose sum is σ = 2678400. Its totient is φ = 334080.

The previous prime is 1007719. The next prime is 1007723. The reversal of 1007720 is 277001.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1007723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16490 + ... + 16550.

It is an arithmetic number, because the mean of its divisors is an integer number (41850).

2^1007720 is an apocalyptic number.

1007720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1007720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1339200).

1007720 is an abundant number, since it is smaller than the sum of its proper divisors (1670680).

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

1007720 is a wasteful number, since it uses less digits than its factorization.

1007720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138 (or 134 counting only the distinct ones).

The product of its (nonzero) digits is 98, while the sum is 17.

The square root of 1007720 is about 1003.8525788182. The cubic root of 1007720 is about 100.2566739545.

The spelling of 1007720 in words is "one million, seven thousand, seven hundred twenty".