681348343 has 24 divisors (see below), whose sum is σ = 783181440. Its totient is φ = 591196320.

The previous prime is 681348293. The next prime is 681348383. The reversal of 681348343 is 343843186.

It is a de Polignac number, because none of the positive numbers 2^k-681348343 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 681348296 and 681348305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (681348383) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 227848 + ... + 230818.

It is an arithmetic number, because the mean of its divisors is an integer number (32632560).

Almost surely, 2^681348343 is an apocalyptic number.

681348343 is a deficient number, since it is larger than the sum of its proper divisors (101833097).

681348343 is a wasteful number, since it uses less digits than its factorization.

681348343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3079 (or 3066 counting only the distinct ones).

The product of its digits is 165888, while the sum is 40.

The square root of 681348343 is about 26102.6501144999. The cubic root of 681348343 is about 879.9467697658.

The spelling of 681348343 in words is "six hundred eighty-one million, three hundred forty-eight thousand, three hundred forty-three".