85429027 has 2 divisors, whose sum is σ = 85429028. Its totient is φ = 85429026.

The previous prime is 85429013. The next prime is 85429031. The reversal of 85429027 is 72092458.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85429027 is a prime.

It is not a weakly prime, because it can be changed into another prime (85429007) 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, 42714513 + 42714514.

It is an arithmetic number, because the mean of its divisors is an integer number (42714514).

Almost surely, 2^85429027 is an apocalyptic number.

85429027 is a deficient number, since it is larger than the sum of its proper divisors (1).

85429027 is an equidigital number, since it uses as much as digits as its factorization.

85429027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 85429027 is about 9242.7824273862. The cubic root of 85429027 is about 440.4214745855.

The spelling of 85429027 in words is "eighty-five million, four hundred twenty-nine thousand, twenty-seven".