679306718 has 4 divisors (see below), whose sum is σ = 1018960080. Its totient is φ = 339653358.

The previous prime is 679306711. The next prime is 679306741. The reversal of 679306718 is 817603976.

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

It is a super-2 number, since 2×679306718² = 922915234239863048, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679306711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169826678 + ... + 169826681.

It is an arithmetic number, because the mean of its divisors is an integer number (254740020).

Almost surely, 2^679306718 is an apocalyptic number.

679306718 is a deficient number, since it is larger than the sum of its proper divisors (339653362).

679306718 is a wasteful number, since it uses less digits than its factorization.

679306718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339653361.

The product of its (nonzero) digits is 381024, while the sum is 47.

The square root of 679306718 is about 26063.5131553672. The cubic root of 679306718 is about 879.0669854725.

The spelling of 679306718 in words is "six hundred seventy-nine million, three hundred six thousand, seven hundred eighteen".