80489811 has 16 divisors (see below), whose sum is σ = 112250880. Its totient is φ = 51205440.

The previous prime is 80489779. The next prime is 80489813. The reversal of 80489811 is 11898408.

It is a happy number.

It is not a de Polignac number, because 80489811 - 2⁵ = 80489779 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80489811.

It is not an unprimeable number, because it can be changed into a prime (80489813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34830 + ... + 37068.

It is an arithmetic number, because the mean of its divisors is an integer number (7015680).

Almost surely, 2^80489811 is an apocalyptic number.

80489811 is a deficient number, since it is larger than the sum of its proper divisors (31761069).

80489811 is a wasteful number, since it uses less digits than its factorization.

80489811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2786.

The product of its (nonzero) digits is 18432, while the sum is 39.

The square root of 80489811 is about 8971.6113937241. The cubic root of 80489811 is about 431.7645375362.

The spelling of 80489811 in words is "eighty million, four hundred eighty-nine thousand, eight hundred eleven".