680435239 has 8 divisors (see below), whose sum is σ = 781361280. Its totient is φ = 586020600.

The previous prime is 680435237. The next prime is 680435269. The reversal of 680435239 is 932534086.

680435239 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 680435239 - 2¹ = 680435237 is a prime.

It is a super-2 number, since 2×680435239² = 925984228945974242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680435233) 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, 1627627 + ... + 1628044.

It is an arithmetic number, because the mean of its divisors is an integer number (97670160).

Almost surely, 2^680435239 is an apocalyptic number.

680435239 is a deficient number, since it is larger than the sum of its proper divisors (100926041).

680435239 is a wasteful number, since it uses less digits than its factorization.

680435239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3255701.

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 680435239 is about 26085.1536127353. The cubic root of 680435239 is about 879.5535092952.

The spelling of 680435239 in words is "six hundred eighty million, four hundred thirty-five thousand, two hundred thirty-nine".