80799039 has 20 divisors (see below), whose sum is σ = 127054840. Its totient is φ = 51030000.

The previous prime is 80799031. The next prime is 80799073. The reversal of 80799039 is 93099708.

It is a happy number.

It is not a de Polignac number, because 80799039 - 2³ = 80799031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80798985 and 80799003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80799031) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 24712 + ... + 27789.

It is an arithmetic number, because the mean of its divisors is an integer number (6352742).

Almost surely, 2^80799039 is an apocalyptic number.

80799039 is a deficient number, since it is larger than the sum of its proper divisors (46255801).

80799039 is a wasteful number, since it uses less digits than its factorization.

80799039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52532 (or 52523 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The square root of 80799039 is about 8988.8285666153. The cubic root of 80799039 is about 432.3167526464.

The spelling of 80799039 in words is "eighty million, seven hundred ninety-nine thousand, thirty-nine".