85617011 has 2 divisors, whose sum is σ = 85617012. Its totient is φ = 85617010.

The previous prime is 85616989. The next prime is 85617023. The reversal of 85617011 is 11071658.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85617011 - 2¹⁰ = 85615987 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (85617611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42808505 + 42808506.

It is an arithmetic number, because the mean of its divisors is an integer number (42808506).

Almost surely, 2^85617011 is an apocalyptic number.

85617011 is a deficient number, since it is larger than the sum of its proper divisors (1).

85617011 is an equidigital number, since it uses as much as digits as its factorization.

85617011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 29.

The square root of 85617011 is about 9252.9460713872. The cubic root of 85617011 is about 440.7442826531.

Adding to 85617011 its reverse (11071658), we get a palindrome (96688669).

The spelling of 85617011 in words is "eighty-five million, six hundred seventeen thousand, eleven".