679766655 has 8 divisors (see below), whose sum is σ = 1087626672. Its totient is φ = 362542208.

The previous prime is 679766621. The next prime is 679766669. The reversal of 679766655 is 556667976.

679766655 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 679766655 - 2¹⁴ = 679750271 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 679766595 and 679766604.

It is a congruent 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, 22658874 + ... + 22658903.

It is an arithmetic number, because the mean of its divisors is an integer number (135953334).

Almost surely, 2^679766655 is an apocalyptic number.

679766655 is a deficient number, since it is larger than the sum of its proper divisors (407860017).

679766655 is a wasteful number, since it uses less digits than its factorization.

679766655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45317785.

The product of its digits is 14288400, while the sum is 57.

The square root of 679766655 is about 26072.3350507775. The cubic root of 679766655 is about 879.2653368239.

The spelling of 679766655 in words is "six hundred seventy-nine million, seven hundred sixty-six thousand, six hundred fifty-five".