680434143 has 16 divisors (see below), whose sum is σ = 914086656. Its totient is φ = 450216000.

The previous prime is 680434091. The next prime is 680434147. The reversal of 680434143 is 341434086.

It is a happy number.

It is not a de Polignac number, because 680434143 - 2⁹ = 680433631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680434147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 234246 + ... + 237132.

It is an arithmetic number, because the mean of its divisors is an integer number (57130416).

Almost surely, 2^680434143 is an apocalyptic number.

680434143 is a deficient number, since it is larger than the sum of its proper divisors (233652513).

680434143 is a wasteful number, since it uses less digits than its factorization.

680434143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3454.

The product of its (nonzero) digits is 27648, while the sum is 33.

The square root of 680434143 is about 26085.1326046083. The cubic root of 680434143 is about 879.5530370528.

The spelling of 680434143 in words is "six hundred eighty million, four hundred thirty-four thousand, one hundred forty-three".