80711289 has 16 divisors (see below), whose sum is σ = 119784000. Its totient is φ = 53712288.

The previous prime is 80711287. The next prime is 80711299. The reversal of 80711289 is 98211708.

It is not a de Polignac number, because 80711289 - 2¹ = 80711287 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80711287) 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, 15037 + ... + 19685.

It is an arithmetic number, because the mean of its divisors is an integer number (7486500).

Almost surely, 2^80711289 is an apocalyptic number.

It is an amenable number.

80711289 is a deficient number, since it is larger than the sum of its proper divisors (39072711).

80711289 is a wasteful number, since it uses less digits than its factorization.

80711289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5301 (or 5295 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 36.

The square root of 80711289 is about 8983.9461819403. The cubic root of 80711289 is about 432.1601932908.

The spelling of 80711289 in words is "eighty million, seven hundred eleven thousand, two hundred eighty-nine".