85734091 has 2 divisors, whose sum is σ = 85734092. Its totient is φ = 85734090.

The previous prime is 85734083. The next prime is 85734101. The reversal of 85734091 is 19043758.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85734091 - 2³ = 85734083 is a prime.

It is a Chen prime.

It is equal to p_4983904 and since 85734091 and 4983904 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85734091.

It is not a weakly prime, because it can be changed into another prime (85734031) 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, 42867045 + 42867046.

It is an arithmetic number, because the mean of its divisors is an integer number (42867046).

Almost surely, 2^85734091 is an apocalyptic number.

85734091 is a deficient number, since it is larger than the sum of its proper divisors (1).

85734091 is an equidigital number, since it uses as much as digits as its factorization.

85734091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 85734091 is about 9259.2705436228. The cubic root of 85734091 is about 440.9450949140.

The spelling of 85734091 in words is "eighty-five million, seven hundred thirty-four thousand, ninety-one".