85024217 has 2 divisors, whose sum is σ = 85024218. Its totient is φ = 85024216.

The previous prime is 85024171. The next prime is 85024229. The reversal of 85024217 is 71242058.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50965321 + 34058896 = 7139^2 + 5836^2 .

It is a cyclic number.

It is not a de Polignac number, because 85024217 - 2¹⁶ = 84958681 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85024217.

It is not a weakly prime, because it can be changed into another prime (85024267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42512108 + 42512109.

It is an arithmetic number, because the mean of its divisors is an integer number (42512109).

Almost surely, 2^85024217 is an apocalyptic number.

It is an amenable number.

85024217 is a deficient number, since it is larger than the sum of its proper divisors (1).

85024217 is an equidigital number, since it uses as much as digits as its factorization.

85024217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 85024217 is about 9220.8577149851. The cubic root of 85024217 is about 439.7247193388.

The spelling of 85024217 in words is "eighty-five million, twenty-four thousand, two hundred seventeen".