80339047 has 4 divisors (see below), whose sum is σ = 80475120. Its totient is φ = 80202976.

The previous prime is 80339029. The next prime is 80339053. The reversal of 80339047 is 74093308.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80339047 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 (80339647) 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 3 ways as a sum of consecutive naturals, for example, 67147 + ... + 68332.

It is an arithmetic number, because the mean of its divisors is an integer number (20118780).

Almost surely, 2^80339047 is an apocalyptic number.

80339047 is a deficient number, since it is larger than the sum of its proper divisors (136073).

80339047 is a wasteful number, since it uses less digits than its factorization.

80339047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136072.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 80339047 is about 8963.2051744898. The cubic root of 80339047 is about 431.4947922822.

The spelling of 80339047 in words is "eighty million, three hundred thirty-nine thousand, forty-seven".