680458722 has 16 divisors (see below), whose sum is σ = 1361352000. Its totient is φ = 226747152.

The previous prime is 680458717. The next prime is 680458747. The reversal of 680458722 is 227854086.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4404 + ... + 37152.

It is an arithmetic number, because the mean of its divisors is an integer number (85084500).

Almost surely, 2^680458722 is an apocalyptic number.

680458722 is an abundant number, since it is smaller than the sum of its proper divisors (680893278).

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

680458722 is a wasteful number, since it uses less digits than its factorization.

680458722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36217.

The product of its (nonzero) digits is 215040, while the sum is 42.

The square root of 680458722 is about 26085.6037307937. The cubic root of 680458722 is about 879.5636274844.

It can be divided in two parts, 68045 and 8722, that added together give a palindrome (76767).

The spelling of 680458722 in words is "six hundred eighty million, four hundred fifty-eight thousand, seven hundred twenty-two".