79347443387 has 4 divisors (see below), whose sum is σ = 79348148376. Its totient is φ = 79346738400.

The previous prime is 79347443381. The next prime is 79347443401. The reversal of 79347443387 is 78334474397.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79347443387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79347443381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141614 + ... + 422787.

It is an arithmetic number, because the mean of its divisors is an integer number (19837037094).

Almost surely, 2^79347443387 is an apocalyptic number.

79347443387 is a deficient number, since it is larger than the sum of its proper divisors (704989).

79347443387 is a wasteful number, since it uses less digits than its factorization.

79347443387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704988.

The product of its digits is 42674688, while the sum is 59.

The spelling of 79347443387 in words is "seventy-nine billion, three hundred forty-seven million, four hundred forty-three thousand, three hundred eighty-seven".