722987208 has 192 divisors, whose sum is σ = 2149646400. Its totient is φ = 227797920.

The previous prime is 722987207. The next prime is 722987219. The reversal of 722987208 is 802789227.

It is a happy number.

722987208 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (722987207) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16813635 + ... + 16813677.

It is an arithmetic number, because the mean of its divisors is an integer number (11196075).

Almost surely, 2^722987208 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 722987208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1074823200).

722987208 is an abundant number, since it is smaller than the sum of its proper divisors (1426659192).

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

722987208 is an equidigital number, since it uses as much as digits as its factorization.

722987208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132 (or 79 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 722987208 is about 26888.4214486459. The cubic root of 722987208 is about 897.5187657045.

The spelling of 722987208 in words is "seven hundred twenty-two million, nine hundred eighty-seven thousand, two hundred eight".