679853999 has 8 divisors (see below), whose sum is σ = 742448592. Its totient is φ = 617391040.

The previous prime is 679853983. The next prime is 679854023. The reversal of 679853999 is 999358976.

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

It is a cyclic number.

It is not a de Polignac number, because 679853999 - 2⁴ = 679853983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679853959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21944 + ... + 42909.

It is an arithmetic number, because the mean of its divisors is an integer number (92806074).

Almost surely, 2^679853999 is an apocalyptic number.

679853999 is a deficient number, since it is larger than the sum of its proper divisors (62594593).

679853999 is a wasteful number, since it uses less digits than its factorization.

679853999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65817.

The product of its digits is 33067440, while the sum is 65.

The square root of 679853999 is about 26074.0100291459. The cubic root of 679853999 is about 879.3029944828.

The spelling of 679853999 in words is "six hundred seventy-nine million, eight hundred fifty-three thousand, nine hundred ninety-nine".