84814091 has 2 divisors, whose sum is σ = 84814092. Its totient is φ = 84814090.

The previous prime is 84814073. The next prime is 84814129. The reversal of 84814091 is 19041848.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84814091 - 2¹⁰ = 84813067 is a prime.

It is not a weakly prime, because it can be changed into another prime (84814021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42407045 + 42407046.

It is an arithmetic number, because the mean of its divisors is an integer number (42407046).

Almost surely, 2^84814091 is an apocalyptic number.

84814091 is a deficient number, since it is larger than the sum of its proper divisors (1).

84814091 is an equidigital number, since it uses as much as digits as its factorization.

84814091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 84814091 is about 9209.4566072054. The cubic root of 84814091 is about 439.3621802081.

The spelling of 84814091 in words is "eighty-four million, eight hundred fourteen thousand, ninety-one".