80347839 has 24 divisors (see below), whose sum is σ = 126559872. Its totient is φ = 44946720.

The previous prime is 80347811. The next prime is 80347843. The reversal of 80347839 is 93874308.

It is not a de Polignac number, because 80347839 - 2⁸ = 80347583 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80347839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80347849) 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 23 ways as a sum of consecutive naturals, for example, 1627 + ... + 12780.

It is an arithmetic number, because the mean of its divisors is an integer number (5273328).

Almost surely, 2^80347839 is an apocalyptic number.

80347839 is a deficient number, since it is larger than the sum of its proper divisors (46212033).

80347839 is a wasteful number, since it uses less digits than its factorization.

80347839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14447 (or 14434 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 80347839 is about 8963.6956106285. The cubic root of 80347839 is about 431.5105320914.

The spelling of 80347839 in words is "eighty million, three hundred forty-seven thousand, eight hundred thirty-nine".