681004700 has 72 divisors (see below), whose sum is σ = 1632832992. Its totient is φ = 245217280.

The previous prime is 681004697. The next prime is 681004733. The reversal of 681004700 is 7400186.

681004700 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 681004700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30392 + ... + 47808.

It is an arithmetic number, because the mean of its divisors is an integer number (22678236).

Almost surely, 2^681004700 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 681004700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (816416496).

681004700 is an abundant number, since it is smaller than the sum of its proper divisors (951828292).

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

681004700 is a wasteful number, since it uses less digits than its factorization.

681004700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17471 (or 17464 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 681004700 is about 26096.0667534401. The cubic root of 681004700 is about 879.7988090335.

Adding to 681004700 its reverse (7400186), we get a palindrome (688404886).

The spelling of 681004700 in words is "six hundred eighty-one million, four thousand, seven hundred".