680368741 has 4 divisors (see below), whose sum is σ = 732704812. Its totient is φ = 628032672.

The previous prime is 680368699. The next prime is 680368751. The reversal of 680368741 is 147863086.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 126472516 + 553896225 = 11246^2 + 23535^2 .

It is a cyclic number.

It is not a de Polignac number, because 680368741 - 2⁷ = 680368613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680368751) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26168016 + ... + 26168041.

It is an arithmetic number, because the mean of its divisors is an integer number (183176203).

Almost surely, 2^680368741 is an apocalyptic number.

It is an amenable number.

680368741 is a deficient number, since it is larger than the sum of its proper divisors (52336071).

680368741 is a wasteful number, since it uses less digits than its factorization.

680368741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52336070.

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 680368741 is about 26083.8789485000. The cubic root of 680368741 is about 879.5248558435.

The spelling of 680368741 in words is "six hundred eighty million, three hundred sixty-eight thousand, seven hundred forty-one".