80271389 has 16 divisors (see below), whose sum is σ = 90550656. Its totient is φ = 70516800.

The previous prime is 80271383. The next prime is 80271419. The reversal of 80271389 is 98317208.

It is a cyclic number.

It is not a de Polignac number, because 80271389 - 2¹² = 80267293 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 (80271383) 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, 67379 + ... + 68559.

It is an arithmetic number, because the mean of its divisors is an integer number (5659416).

Almost surely, 2^80271389 is an apocalyptic number.

It is an amenable number.

80271389 is a deficient number, since it is larger than the sum of its proper divisors (10279267).

80271389 is a wasteful number, since it uses less digits than its factorization.

80271389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1396.

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

The square root of 80271389 is about 8959.4301716125. The cubic root of 80271389 is about 431.3736296392.

The spelling of 80271389 in words is "eighty million, two hundred seventy-one thousand, three hundred eighty-nine".