679964347 has 4 divisors (see below), whose sum is σ = 680251360. Its totient is φ = 679677336.

The previous prime is 679964339. The next prime is 679964353. The reversal of 679964347 is 743469976.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 679964347 - 2³ = 679964339 is a prime.

It is a super-2 number, since 2×679964347² = 924703026382272818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (679964357) 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 3 ways as a sum of consecutive naturals, for example, 139923 + ... + 144700.

It is an arithmetic number, because the mean of its divisors is an integer number (170062840).

Almost surely, 2^679964347 is an apocalyptic number.

679964347 is a deficient number, since it is larger than the sum of its proper divisors (287013).

679964347 is a wasteful number, since it uses less digits than its factorization.

679964347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287012.

The product of its digits is 6858432, while the sum is 55.

The square root of 679964347 is about 26076.1259967810. The cubic root of 679964347 is about 879.3505655191.

The spelling of 679964347 in words is "six hundred seventy-nine million, nine hundred sixty-four thousand, three hundred forty-seven".