80871329 has 16 divisors (see below), whose sum is σ = 106759296. Its totient is φ = 59308800.

The previous prime is 80871319. The next prime is 80871341. The reversal of 80871329 is 92317808.

It is a cyclic number.

It is not a de Polignac number, because 80871329 - 2¹² = 80867233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80871292 and 80871301.

It is not an unprimeable number, because it can be changed into a prime (80871319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29582 + ... + 32199.

It is an arithmetic number, because the mean of its divisors is an integer number (6672456).

Almost surely, 2^80871329 is an apocalyptic number.

It is an amenable number.

80871329 is a deficient number, since it is larger than the sum of its proper divisors (25887967).

80871329 is a wasteful number, since it uses less digits than its factorization.

80871329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61816.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 80871329 is about 8992.8487699950. The cubic root of 80871329 is about 432.4456438755.

The spelling of 80871329 in words is "eighty million, eight hundred seventy-one thousand, three hundred twenty-nine".