84080911 has 2 divisors, whose sum is σ = 84080912. Its totient is φ = 84080910.

The previous prime is 84080903. The next prime is 84080923. The reversal of 84080911 is 11908048.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84080911 - 2³ = 84080903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84089911) 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 as a sum of consecutive naturals, namely, 42040455 + 42040456.

It is an arithmetic number, because the mean of its divisors is an integer number (42040456).

Almost surely, 2^84080911 is an apocalyptic number.

84080911 is a deficient number, since it is larger than the sum of its proper divisors (1).

84080911 is an equidigital number, since it uses as much as digits as its factorization.

84080911 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 31.

The square root of 84080911 is about 9169.5643844187. The cubic root of 84080911 is about 438.0924844493.

Adding to 84080911 its reverse (11908048), we get a palindrome (95988959).

The spelling of 84080911 in words is "eighty-four million, eighty thousand, nine hundred eleven".