720676344 has 64 divisors (see below), whose sum is σ = 1863613440. Its totient is φ = 232001280.

The previous prime is 720676339. The next prime is 720676349. The reversal of 720676344 is 443676027.

It is an interprime number because it is at equal distance from previous prime (720676339) and next prime (720676349).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720676349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 656404 + ... + 657500.

It is an arithmetic number, because the mean of its divisors is an integer number (29118960).

Almost surely, 2^720676344 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 720676344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (931806720).

720676344 is an abundant number, since it is smaller than the sum of its proper divisors (1142937096).

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

720676344 is a wasteful number, since it uses less digits than its factorization.

720676344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2020 (or 2016 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 39.

The square root of 720676344 is about 26845.4156980293. The cubic root of 720676344 is about 896.5615069635.

The spelling of 720676344 in words is "seven hundred twenty million, six hundred seventy-six thousand, three hundred forty-four".