84634091 has 2 divisors, whose sum is σ = 84634092. Its totient is φ = 84634090.

The previous prime is 84634063. The next prime is 84634117. The reversal of 84634091 is 19043648.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84634091 - 2⁶ = 84634027 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (84634391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42317045 + 42317046.

It is an arithmetic number, because the mean of its divisors is an integer number (42317046).

Almost surely, 2^84634091 is an apocalyptic number.

84634091 is a deficient number, since it is larger than the sum of its proper divisors (1).

84634091 is an equidigital number, since it uses as much as digits as its factorization.

84634091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 84634091 is about 9199.6788530905. The cubic root of 84634091 is about 439.0511422475.

The spelling of 84634091 in words is "eighty-four million, six hundred thirty-four thousand, ninety-one".