681246700 has 36 divisors (see below), whose sum is σ = 1525999552. Its totient is φ = 263707200.

The previous prime is 681246697. The next prime is 681246751. The reversal of 681246700 is 7642186.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106779 + ... + 112978.

Almost surely, 2^681246700 is an apocalyptic number.

It is an amenable number.

681246700 is an abundant number, since it is smaller than the sum of its proper divisors (844752852).

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

681246700 is a wasteful number, since it uses less digits than its factorization.

681246700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219802 (or 219795 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 681246700 is about 26100.7030556650. The cubic root of 681246700 is about 879.9030110050.

Adding to 681246700 its reverse (7642186), we get a palindrome (688888886).

The spelling of 681246700 in words is "six hundred eighty-one million, two hundred forty-six thousand, seven hundred".