85238441 has 2 divisors, whose sum is σ = 85238442. Its totient is φ = 85238440.

The previous prime is 85238423. The next prime is 85238497. The reversal of 85238441 is 14483258.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85026841 + 211600 = 9221^2 + 460^2 .

It is a cyclic number.

It is not a de Polignac number, because 85238441 - 2²⁶ = 18129577 is a prime.

It is a super-2 number, since 2×85238441² = 14531183648220962, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (85238641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42619220 + 42619221.

It is an arithmetic number, because the mean of its divisors is an integer number (42619221).

Almost surely, 2^85238441 is an apocalyptic number.

It is an amenable number.

85238441 is a deficient number, since it is larger than the sum of its proper divisors (1).

85238441 is an equidigital number, since it uses as much as digits as its factorization.

85238441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30720, while the sum is 35.

The square root of 85238441 is about 9232.4666801457. The cubic root of 85238441 is about 440.0937145427.

It can be divided in two parts, 852 and 38441, that added together give a palindrome (39293).

The spelling of 85238441 in words is "eighty-five million, two hundred thirty-eight thousand, four hundred forty-one".