680830239 has 4 divisors (see below), whose sum is σ = 907773656. Its totient is φ = 453886824.

The previous prime is 680830219. The next prime is 680830243. The reversal of 680830239 is 932038086.

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

It is not a de Polignac number, because 680830239 - 2¹² = 680826143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 680830197 and 680830206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680830219) 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, 113471704 + ... + 113471709.

It is an arithmetic number, because the mean of its divisors is an integer number (226943414).

Almost surely, 2^680830239 is an apocalyptic number.

680830239 is a deficient number, since it is larger than the sum of its proper divisors (226943417).

680830239 is a wasteful number, since it uses less digits than its factorization.

680830239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226943416.

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 680830239 is about 26092.7238708418. The cubic root of 680830239 is about 879.7236731404.

The spelling of 680830239 in words is "six hundred eighty million, eight hundred thirty thousand, two hundred thirty-nine".