681175284 has 24 divisors (see below), whose sum is σ = 1594594848. Its totient is φ = 226317600.

The previous prime is 681175283. The next prime is 681175303. The reversal of 681175284 is 482571186.

681175284 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (681175283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88767 + ... + 96134.

It is an arithmetic number, because the mean of its divisors is an integer number (66441452).

Almost surely, 2^681175284 is an apocalyptic number.

It is an amenable number.

681175284 is an abundant number, since it is smaller than the sum of its proper divisors (913419564).

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

681175284 is a wasteful number, since it uses less digits than its factorization.

681175284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185215 (or 185213 counting only the distinct ones).

The product of its digits is 107520, while the sum is 42.

The square root of 681175284 is about 26099.3349340553. The cubic root of 681175284 is about 879.8722627952.

The spelling of 681175284 in words is "six hundred eighty-one million, one hundred seventy-five thousand, two hundred eighty-four".