80984511 has 12 divisors (see below), whose sum is σ = 118388088. Its totient is φ = 53338704.

The previous prime is 80984473. The next prime is 80984531. The reversal of 80984511 is 11548908.

It is not a de Polignac number, because 80984511 - 2¹³ = 80976319 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80984531) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53460 + ... + 54953.

It is an arithmetic number, because the mean of its divisors is an integer number (9865674).

Almost surely, 2^80984511 is an apocalyptic number.

80984511 is a deficient number, since it is larger than the sum of its proper divisors (37403577).

80984511 is a wasteful number, since it uses less digits than its factorization.

80984511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108502 (or 108499 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The square root of 80984511 is about 8999.1394588594. The cubic root of 80984511 is about 432.6472903173.

The spelling of 80984511 in words is "eighty million, nine hundred eighty-four thousand, five hundred eleven".