680069769 has 4 divisors (see below), whose sum is σ = 906759696. Its totient is φ = 453379844.

The previous prime is 680069711. The next prime is 680069783. The reversal of 680069769 is 967960086.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 680069769 - 2¹⁷ = 679938697 is a prime.

It is a super-2 number, since 2×680069769² = 924989781415426722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (680069569) 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, 113344959 + ... + 113344964.

It is an arithmetic number, because the mean of its divisors is an integer number (226689924).

Almost surely, 2^680069769 is an apocalyptic number.

It is an amenable number.

680069769 is a deficient number, since it is larger than the sum of its proper divisors (226689927).

680069769 is a wasteful number, since it uses less digits than its factorization.

680069769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226689926.

The product of its (nonzero) digits is 979776, while the sum is 51.

The square root of 680069769 is about 26078.1473460060. The cubic root of 680069769 is about 879.3960081491.

The spelling of 680069769 in words is "six hundred eighty million, sixty-nine thousand, seven hundred sixty-nine".