85084547 has 2 divisors, whose sum is σ = 85084548. Its totient is φ = 85084546.

The previous prime is 85084511. The next prime is 85084561. The reversal of 85084547 is 74548058.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85084547 - 2¹² = 85080451 is a prime.

It is not a weakly prime, because it can be changed into another prime (85084247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42542273 + 42542274.

It is an arithmetic number, because the mean of its divisors is an integer number (42542274).

Almost surely, 2^85084547 is an apocalyptic number.

85084547 is a deficient number, since it is larger than the sum of its proper divisors (1).

85084547 is an equidigital number, since it uses as much as digits as its factorization.

85084547 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 179200, while the sum is 41.

The square root of 85084547 is about 9224.1285225218. The cubic root of 85084547 is about 439.8286988134.

The spelling of 85084547 in words is "eighty-five million, eighty-four thousand, five hundred forty-seven".