680792709 has 8 divisors (see below), whose sum is σ = 947189952. Its totient is φ = 434128640.

The previous prime is 680792689. The next prime is 680792713. The reversal of 680792709 is 907297086.

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

It is a cyclic number.

It is not a de Polignac number, because 680792709 - 2⁵ = 680792677 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680792729) 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, 4933212 + ... + 4933349.

It is an arithmetic number, because the mean of its divisors is an integer number (118398744).

Almost surely, 2^680792709 is an apocalyptic number.

680792709 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

It is an amenable number.

680792709 is a deficient number, since it is larger than the sum of its proper divisors (266397243).

680792709 is a wasteful number, since it uses less digits than its factorization.

680792709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9866587.

The product of its (nonzero) digits is 381024, while the sum is 48.

The square root of 680792709 is about 26092.0046949252. The cubic root of 680792709 is about 879.7075082512.

The spelling of 680792709 in words is "six hundred eighty million, seven hundred ninety-two thousand, seven hundred nine".