679687329 has 32 divisors (see below), whose sum is σ = 965412864. Its totient is φ = 424448640.

The previous prime is 679687313. The next prime is 679687339. The reversal of 679687329 is 923786976.

It is a happy number.

It is not a de Polignac number, because 679687329 - 2⁴ = 679687313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (679687339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1076844 + ... + 1077474.

It is an arithmetic number, because the mean of its divisors is an integer number (30169152).

Almost surely, 2^679687329 is an apocalyptic number.

679687329 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

It is an amenable number.

679687329 is a deficient number, since it is larger than the sum of its proper divisors (285725535).

679687329 is a wasteful number, since it uses less digits than its factorization.

679687329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957.

The product of its digits is 6858432, while the sum is 57.

The square root of 679687329 is about 26070.8137387386. The cubic root of 679687329 is about 879.2311332656.

The spelling of 679687329 in words is "six hundred seventy-nine million, six hundred eighty-seven thousand, three hundred twenty-nine".