680239437 has 8 divisors (see below), whose sum is σ = 907106400. Its totient is φ = 453432720.

The previous prime is 680239397. The next prime is 680239481. The reversal of 680239437 is 734932086.

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

It is not a de Polignac number, because 680239437 - 2¹² = 680235341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680239537) 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, 36814 + ... + 52112.

It is an arithmetic number, because the mean of its divisors is an integer number (113388300).

Almost surely, 2^680239437 is an apocalyptic number.

It is an amenable number.

680239437 is a deficient number, since it is larger than the sum of its proper divisors (226866963).

680239437 is a wasteful number, since it uses less digits than its factorization.

680239437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30123.

The product of its (nonzero) digits is 217728, while the sum is 42.

The square root of 680239437 is about 26081.4002116451. The cubic root of 680239437 is about 879.4691344479.

The spelling of 680239437 in words is "six hundred eighty million, two hundred thirty-nine thousand, four hundred thirty-seven".