80872439 has 8 divisors (see below), whose sum is σ = 84481152. Its totient is φ = 77271480.

The previous prime is 80872433. The next prime is 80872453. The reversal of 80872439 is 93427808.

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

It is a cyclic number.

It is not a de Polignac number, because 80872439 - 2¹⁶ = 80806903 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80872396 and 80872405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80872433) 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, 32924 + ... + 35294.

It is an arithmetic number, because the mean of its divisors is an integer number (10560144).

Almost surely, 2^80872439 is an apocalyptic number.

80872439 is a deficient number, since it is larger than the sum of its proper divisors (3608713).

80872439 is a wasteful number, since it uses less digits than its factorization.

80872439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3877.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 80872439 is about 8992.9104854880. The cubic root of 80872439 is about 432.4476223784.

The spelling of 80872439 in words is "eighty million, eight hundred seventy-two thousand, four hundred thirty-nine".