679838523 has 16 divisors (see below), whose sum is σ = 1115632896. Its totient is φ = 358596000.

The previous prime is 679838513. The next prime is 679838527. The reversal of 679838523 is 325838976.

It is not a de Polignac number, because 679838523 - 2⁸ = 679838267 is a prime.

It is not an unprimeable number, because it can be changed into a prime (679838527) 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 15 ways as a sum of consecutive naturals, for example, 1244853 + ... + 1245398.

It is an arithmetic number, because the mean of its divisors is an integer number (69727056).

Almost surely, 2^679838523 is an apocalyptic number.

679838523 is a deficient number, since it is larger than the sum of its proper divisors (435794373).

679838523 is a wasteful number, since it uses less digits than its factorization.

679838523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2490274.

The product of its digits is 2177280, while the sum is 51.

The square root of 679838523 is about 26073.7132568416. The cubic root of 679838523 is about 879.2963223658.

It can be divided in two parts, 679838 and 523, that added together give a triangular number (680361 = T₁₁₆₆).

The spelling of 679838523 in words is "six hundred seventy-nine million, eight hundred thirty-eight thousand, five hundred twenty-three".