681907848 has 16 divisors (see below), whose sum is σ = 1704769680. Its totient is φ = 227302608.

The previous prime is 681907847. The next prime is 681907861. The reversal of 681907848 is 848709186.

It is a super-2 number, since 2×681907848² = 929996626327982208, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 681907848.

It is not an unprimeable number, because it can be changed into a prime (681907847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14206390 + ... + 14206437.

It is an arithmetic number, because the mean of its divisors is an integer number (106548105).

Almost surely, 2^681907848 is an apocalyptic number.

It is an amenable number.

681907848 is an abundant number, since it is smaller than the sum of its proper divisors (1022861832).

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

681907848 is a wasteful number, since it uses less digits than its factorization.

681907848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28412836 (or 28412832 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 51.

The square root of 681907848 is about 26113.3653135708. The cubic root of 681907848 is about 880.1875667677.

The spelling of 681907848 in words is "six hundred eighty-one million, nine hundred seven thousand, eight hundred forty-eight".