679347873 has 12 divisors (see below), whose sum is σ = 981602388. Its totient is φ = 452749920.

The previous prime is 679347859. The next prime is 679347887. The reversal of 679347873 is 378743976.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (679347859) and next prime (679347887).

It can be written as a sum of positive squares in 2 ways, for example, as 395492769 + 283855104 = 19887^2 + 16848^2 .

It is not a de Polignac number, because 679347873 - 2¹³ = 679339681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (679347833) 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 11 ways as a sum of consecutive naturals, for example, 21403 + ... + 42623.

It is an arithmetic number, because the mean of its divisors is an integer number (81800199).

Almost surely, 2^679347873 is an apocalyptic number.

It is an amenable number.

679347873 is a deficient number, since it is larger than the sum of its proper divisors (302254515).

679347873 is a wasteful number, since it uses less digits than its factorization.

679347873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24784 (or 24781 counting only the distinct ones).

The product of its digits is 5334336, while the sum is 54.

The square root of 679347873 is about 26064.3026570825. The cubic root of 679347873 is about 879.0847375278.

The spelling of 679347873 in words is "six hundred seventy-nine million, three hundred forty-seven thousand, eight hundred seventy-three".