716278313 has 8 divisors (see below), whose sum is σ = 722147400. Its totient is φ = 710423680.

The previous prime is 716278309. The next prime is 716278327. The reversal of 716278313 is 313872617.

It can be written as a sum of positive squares in 4 ways, for example, as 21270544 + 695007769 = 4612^2 + 26363^2 .

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 716278313 - 2² = 716278309 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (716278363) 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 7 ways as a sum of consecutive naturals, for example, 110231 + ... + 116547.

It is an arithmetic number, because the mean of its divisors is an integer number (90268425).

Almost surely, 2^716278313 is an apocalyptic number.

It is an amenable number.

716278313 is a deficient number, since it is larger than the sum of its proper divisors (5869087).

716278313 is a wasteful number, since it uses less digits than its factorization.

716278313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7227.

The product of its digits is 42336, while the sum is 38.

The square root of 716278313 is about 26763.3763378240. The cubic root of 716278313 is about 894.7339858385.

The spelling of 716278313 in words is "seven hundred sixteen million, two hundred seventy-eight thousand, three hundred thirteen".