680425793 has 4 divisors (see below), whose sum is σ = 680683968. Its totient is φ = 680167620.

The previous prime is 680425769. The next prime is 680425807. The reversal of 680425793 is 397524086.

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, and also an emirpimes, since its reverse is a distinct semiprime: 397524086 = 2 ⋅198762043.

It is a cyclic number.

It is not a de Polignac number, because 680425793 - 2⁶ = 680425729 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (680425703) 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 3 ways as a sum of consecutive naturals, for example, 125093 + ... + 130418.

It is an arithmetic number, because the mean of its divisors is an integer number (170170992).

Almost surely, 2^680425793 is an apocalyptic number.

It is an amenable number.

680425793 is a deficient number, since it is larger than the sum of its proper divisors (258175).

680425793 is a wasteful number, since it uses less digits than its factorization.

680425793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258174.

The product of its (nonzero) digits is 362880, while the sum is 44.

The square root of 680425793 is about 26084.9725512602. The cubic root of 680425793 is about 879.5494392038.

The spelling of 680425793 in words is "six hundred eighty million, four hundred twenty-five thousand, seven hundred ninety-three".