679706385 has 8 divisors (see below), whose sum is σ = 1087530240. Its totient is φ = 362510064.

The previous prime is 679706369. The next prime is 679706459. The reversal of 679706385 is 583607976.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 679706385 - 2⁴ = 679706369 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22656865 + ... + 22656894.

It is an arithmetic number, because the mean of its divisors is an integer number (135941280).

Almost surely, 2^679706385 is an apocalyptic number.

It is an amenable number.

679706385 is a deficient number, since it is larger than the sum of its proper divisors (407823855).

679706385 is a wasteful number, since it uses less digits than its factorization.

679706385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45313767.

The product of its (nonzero) digits is 1905120, while the sum is 51.

The square root of 679706385 is about 26071.1792023299. The cubic root of 679706385 is about 879.2393500201.

The spelling of 679706385 in words is "six hundred seventy-nine million, seven hundred six thousand, three hundred eighty-five".