85269617 has 2 divisors, whose sum is σ = 85269618. Its totient is φ = 85269616.

The previous prime is 85269593. The next prime is 85269631. The reversal of 85269617 is 71696258.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75881521 + 9388096 = 8711^2 + 3064^2 .

It is a cyclic number.

It is not a de Polignac number, because 85269617 - 2¹⁰ = 85268593 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (85269517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42634808 + 42634809.

It is an arithmetic number, because the mean of its divisors is an integer number (42634809).

Almost surely, 2^85269617 is an apocalyptic number.

It is an amenable number.

85269617 is a deficient number, since it is larger than the sum of its proper divisors (1).

85269617 is an equidigital number, since it uses as much as digits as its factorization.

85269617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 44.

The square root of 85269617 is about 9234.1549153130. The cubic root of 85269617 is about 440.1473628305.

It can be divided in two parts, 8 and 5269617, that added together give a palindrome (5269625).

The spelling of 85269617 in words is "eighty-five million, two hundred sixty-nine thousand, six hundred seventeen".