80712039 has 8 divisors (see below), whose sum is σ = 113946480. Its totient is φ = 50642816.

The previous prime is 80712013. The next prime is 80712041. The reversal of 80712039 is 93021708.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80712039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80711997 and 80712015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80711039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 791244 + ... + 791345.

It is an arithmetic number, because the mean of its divisors is an integer number (14243310).

Almost surely, 2^80712039 is an apocalyptic number.

80712039 is a deficient number, since it is larger than the sum of its proper divisors (33234441).

80712039 is a wasteful number, since it uses less digits than its factorization.

80712039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582609.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 80712039 is about 8983.9879229661. The cubic root of 80712039 is about 432.1615318856.

The spelling of 80712039 in words is "eighty million, seven hundred twelve thousand, thirty-nine".