7879316387 has 4 divisors (see below), whose sum is σ = 7900106520. Its totient is φ = 7858526256.

The previous prime is 7879316339. The next prime is 7879316399. The reversal of 7879316387 is 7836139787.

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 7879316387 - 2⁶ = 7879316323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7879319387) 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, 10394498 + ... + 10395255.

It is an arithmetic number, because the mean of its divisors is an integer number (1975026630).

Almost surely, 2^7879316387 is an apocalyptic number.

7879316387 is a deficient number, since it is larger than the sum of its proper divisors (20790133).

7879316387 is a wasteful number, since it uses less digits than its factorization.

7879316387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20790132.

The product of its digits is 10668672, while the sum is 59.

The square root of 7879316387 is about 88765.5135004580. The cubic root of 7879316387 is about 1989.8920328114.

The spelling of 7879316387 in words is "seven billion, eight hundred seventy-nine million, three hundred sixteen thousand, three hundred eighty-seven".