680294005 has 8 divisors (see below), whose sum is σ = 816708312. Its totient is φ = 543998208.

The previous prime is 680294003. The next prime is 680294011. The reversal of 680294005 is 500492086.

It is a happy number.

680294005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1274641 + 679019364 = 1129^2 + 26058^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 680294005 - 2¹ = 680294003 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 (680294003) 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, 16464 + ... + 40393.

It is an arithmetic number, because the mean of its divisors is an integer number (102088539).

Almost surely, 2^680294005 is an apocalyptic number.

It is an amenable number.

680294005 is a deficient number, since it is larger than the sum of its proper divisors (136414307).

680294005 is a wasteful number, since it uses less digits than its factorization.

680294005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59255.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 680294005 is about 26082.4463001460. The cubic root of 680294005 is about 879.4926504757.

The spelling of 680294005 in words is "six hundred eighty million, two hundred ninety-four thousand, five".