680648423 has 16 divisors (see below), whose sum is σ = 849205056. Its totient is φ = 531152640.

The previous prime is 680648401. The next prime is 680648443. The reversal of 680648423 is 324846086.

It is a cyclic number.

It is not a de Polignac number, because 680648423 - 2⁸ = 680648167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680648443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44588 + ... + 57873.

It is an arithmetic number, because the mean of its divisors is an integer number (53075316).

Almost surely, 2^680648423 is an apocalyptic number.

680648423 is a deficient number, since it is larger than the sum of its proper divisors (168556633).

680648423 is a wasteful number, since it uses less digits than its factorization.

680648423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102554.

The product of its (nonzero) digits is 221184, while the sum is 41.

The square root of 680648423 is about 26089.2396017975. The cubic root of 680648423 is about 879.6453559769.

The spelling of 680648423 in words is "six hundred eighty million, six hundred forty-eight thousand, four hundred twenty-three".