680454217 has 8 divisors (see below), whose sum is σ = 693364320. Its totient is φ = 667661280.

The previous prime is 680454209. The next prime is 680454253. The reversal of 680454217 is 712454086.

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 680454217 - 2³ = 680454209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (680454617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17523 + ... + 40840.

It is an arithmetic number, because the mean of its divisors is an integer number (86670540).

Almost surely, 2^680454217 is an apocalyptic number.

It is an amenable number.

680454217 is a deficient number, since it is larger than the sum of its proper divisors (12910103).

680454217 is a wasteful number, since it uses less digits than its factorization.

680454217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58583.

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 680454217 is about 26085.5173803396. The cubic root of 680454217 is about 879.5616864198.

The spelling of 680454217 in words is "six hundred eighty million, four hundred fifty-four thousand, two hundred seventeen".