679966047 has 12 divisors (see below), whose sum is σ = 987662520. Its totient is φ = 450777168.

The previous prime is 679966039. The next prime is 679966069. The reversal of 679966047 is 740669976.

It is not a de Polignac number, because 679966047 - 2³ = 679966039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 679965984 and 679966002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679961047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 209428 + ... + 212649.

It is an arithmetic number, because the mean of its divisors is an integer number (82305210).

Almost surely, 2^679966047 is an apocalyptic number.

679966047 is a deficient number, since it is larger than the sum of its proper divisors (307696473).

679966047 is a wasteful number, since it uses less digits than its factorization.

679966047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422262 (or 422259 counting only the distinct ones).

The product of its (nonzero) digits is 3429216, while the sum is 54.

The square root of 679966047 is about 26076.1585936272. The cubic root of 679966047 is about 879.3512983490.

The spelling of 679966047 in words is "six hundred seventy-nine million, nine hundred sixty-six thousand, forty-seven".