7979700317 has 4 divisors (see below), whose sum is σ = 8174327196. Its totient is φ = 7785073440.

The previous prime is 7979700271. The next prime is 7979700319. The reversal of 7979700317 is 7130079797.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4269184921 + 3710515396 = 65339^2 + 60914^2 .

It is not a de Polignac number, because 7979700317 - 2¹⁰ = 7979699293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7979700319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97313378 + ... + 97313459.

It is an arithmetic number, because the mean of its divisors is an integer number (2043581799).

Almost surely, 2^7979700317 is an apocalyptic number.

It is an amenable number.

7979700317 is a deficient number, since it is larger than the sum of its proper divisors (194626879).

7979700317 is a wasteful number, since it uses less digits than its factorization.

7979700317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194626878.

The product of its (nonzero) digits is 583443, while the sum is 50.

The square root of 7979700317 is about 89329.1683438282. The cubic root of 7979700317 is about 1998.3069269062.

The spelling of 7979700317 in words is "seven billion, nine hundred seventy-nine million, seven hundred thousand, three hundred seventeen".