80838111 has 16 divisors (see below), whose sum is σ = 117808128. Its totient is φ = 49084800.

The previous prime is 80838097. The next prime is 80838127. The reversal of 80838111 is 11183808.

It is not a de Polignac number, because 80838111 - 2¹³ = 80829919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80838181) 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, 23985 + ... + 27146.

It is an arithmetic number, because the mean of its divisors is an integer number (7363008).

Almost surely, 2^80838111 is an apocalyptic number.

80838111 is a deficient number, since it is larger than the sum of its proper divisors (36970017).

80838111 is a wasteful number, since it uses less digits than its factorization.

80838111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51182.

The product of its (nonzero) digits is 1536, while the sum is 30.

The square root of 80838111 is about 8991.0016683348. The cubic root of 80838111 is about 432.3864265697.

Subtracting from 80838111 its sum of digits (30), we obtain a square (80838081 = 8991²).

The spelling of 80838111 in words is "eighty million, eight hundred thirty-eight thousand, one hundred eleven".