680146597 has 4 divisors (see below), whose sum is σ = 732465580. Its totient is φ = 627827616.

The previous prime is 680146589. The next prime is 680146613. The reversal of 680146597 is 795641086.

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 422672481 + 257474116 = 20559^2 + 16046^2 .

It is not a de Polignac number, because 680146597 - 2³ = 680146589 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 (680146507) 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 3 ways as a sum of consecutive naturals, for example, 26159472 + ... + 26159497.

It is an arithmetic number, because the mean of its divisors is an integer number (183116395).

Almost surely, 2^680146597 is an apocalyptic number.

It is an amenable number.

680146597 is a deficient number, since it is larger than the sum of its proper divisors (52318983).

680146597 is a wasteful number, since it uses less digits than its factorization.

680146597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52318982.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 680146597 is about 26079.6203384942. The cubic root of 680146597 is about 879.4291222479.

The spelling of 680146597 in words is "six hundred eighty million, one hundred forty-six thousand, five hundred ninety-seven".