85394641 has 2 divisors, whose sum is σ = 85394642. Its totient is φ = 85394640.

The previous prime is 85394627. The next prime is 85394657. The reversal of 85394641 is 14649358.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59598400 + 25796241 = 7720^2 + 5079^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85394641 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 85394594 and 85394603.

It is not a weakly prime, because it can be changed into another prime (85394671) 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, 42697320 + 42697321.

It is an arithmetic number, because the mean of its divisors is an integer number (42697321).

Almost surely, 2^85394641 is an apocalyptic number.

It is an amenable number.

85394641 is a deficient number, since it is larger than the sum of its proper divisors (1).

85394641 is an equidigital number, since it uses as much as digits as its factorization.

85394641 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 85394641 is about 9240.9220860258. The cubic root of 85394641 is about 440.3623753709.

The spelling of 85394641 in words is "eighty-five million, three hundred ninety-four thousand, six hundred forty-one".