679936319 has 4 divisors (see below), whose sum is σ = 684499800. Its totient is φ = 675372840.

The previous prime is 679936303. The next prime is 679936321. The reversal of 679936319 is 913639976.

It is a happy number.

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 679936319 - 2⁴ = 679936303 is a prime.

It is a super-2 number, since 2×679936319² = 924626795790539522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679936379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2281517 + ... + 2281814.

It is an arithmetic number, because the mean of its divisors is an integer number (171124950).

Almost surely, 2^679936319 is an apocalyptic number.

679936319 is a deficient number, since it is larger than the sum of its proper divisors (4563481).

679936319 is a wasteful number, since it uses less digits than its factorization.

679936319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4563480.

The product of its digits is 1653372, while the sum is 53.

The square root of 679936319 is about 26075.5885647860. The cubic root of 679936319 is about 879.3384831325.

The spelling of 679936319 in words is "six hundred seventy-nine million, nine hundred thirty-six thousand, three hundred nineteen".