80824111 has 2 divisors, whose sum is σ = 80824112. Its totient is φ = 80824110.

The previous prime is 80824091. The next prime is 80824123. The reversal of 80824111 is 11142808.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80824111 - 2⁷ = 80823983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80824141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40412055 + 40412056.

It is an arithmetic number, because the mean of its divisors is an integer number (40412056).

Almost surely, 2^80824111 is an apocalyptic number.

80824111 is a deficient number, since it is larger than the sum of its proper divisors (1).

80824111 is an equidigital number, since it uses as much as digits as its factorization.

80824111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 512, while the sum is 25.

The square root of 80824111 is about 8990.2230784336. The cubic root of 80824111 is about 432.3614640886.

Adding to 80824111 its reverse (11142808), we get a palindrome (91966919).

The spelling of 80824111 in words is "eighty million, eight hundred twenty-four thousand, one hundred eleven".