680838711 has 8 divisors (see below), whose sum is σ = 1037468544. Its totient is φ = 389050680.

The previous prime is 680838707. The next prime is 680838727. The reversal of 680838711 is 117838086.

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

It is not a de Polignac number, because 680838711 - 2² = 680838707 is a prime.

It is a super-2 number, since 2×680838711² = 927082700792283042, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680838211) 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, 16210425 + ... + 16210466.

It is an arithmetic number, because the mean of its divisors is an integer number (129683568).

Almost surely, 2^680838711 is an apocalyptic number.

680838711 is a deficient number, since it is larger than the sum of its proper divisors (356629833).

680838711 is a wasteful number, since it uses less digits than its factorization.

680838711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32420901.

The product of its (nonzero) digits is 64512, while the sum is 42.

The square root of 680838711 is about 26092.8862144455. The cubic root of 680838711 is about 879.7273221108.

The spelling of 680838711 in words is "six hundred eighty million, eight hundred thirty-eight thousand, seven hundred eleven".