85288547 has 2 divisors, whose sum is σ = 85288548. Its totient is φ = 85288546.

The previous prime is 85288519. The next prime is 85288573. The reversal of 85288547 is 74588258.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85288547 - 2¹⁴ = 85272163 is a prime.

It is not a weakly prime, because it can be changed into another prime (85288517) 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, 42644273 + 42644274.

It is an arithmetic number, because the mean of its divisors is an integer number (42644274).

Almost surely, 2^85288547 is an apocalyptic number.

85288547 is a deficient number, since it is larger than the sum of its proper divisors (1).

85288547 is an equidigital number, since it uses as much as digits as its factorization.

85288547 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 716800, while the sum is 47.

The square root of 85288547 is about 9235.1798574798. The cubic root of 85288547 is about 440.1799315749.

The spelling of 85288547 in words is "eighty-five million, two hundred eighty-eight thousand, five hundred forty-seven".