85944361 has 2 divisors, whose sum is σ = 85944362. Its totient is φ = 85944360.

The previous prime is 85944349. The next prime is 85944421. The reversal of 85944361 is 16344958.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48734361 + 37210000 = 6981^2 + 6100^2 .

It is a cyclic number.

It is not a de Polignac number, because 85944361 - 2¹¹ = 85942313 is a prime.

It is not a weakly prime, because it can be changed into another prime (85944301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42972180 + 42972181.

It is an arithmetic number, because the mean of its divisors is an integer number (42972181).

Almost surely, 2^85944361 is an apocalyptic number.

It is an amenable number.

85944361 is a deficient number, since it is larger than the sum of its proper divisors (1).

85944361 is an equidigital number, since it uses as much as digits as its factorization.

85944361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 40.

The square root of 85944361 is about 9270.6181563044. The cubic root of 85944361 is about 441.3052854674.

The spelling of 85944361 in words is "eighty-five million, nine hundred forty-four thousand, three hundred sixty-one".