85943321 has 2 divisors, whose sum is σ = 85943322. Its totient is φ = 85943320.

The previous prime is 85943317. The next prime is 85943359. The reversal of 85943321 is 12334958.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82101721 + 3841600 = 9061^2 + 1960^2 .

It is a cyclic number.

It is not a de Polignac number, because 85943321 - 2² = 85943317 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (85943371) 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, 42971660 + 42971661.

It is an arithmetic number, because the mean of its divisors is an integer number (42971661).

Almost surely, 2^85943321 is an apocalyptic number.

It is an amenable number.

85943321 is a deficient number, since it is larger than the sum of its proper divisors (1).

85943321 is an equidigital number, since it uses as much as digits as its factorization.

85943321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 35.

The square root of 85943321 is about 9270.5620649451. The cubic root of 85943321 is about 441.3035054036.

The spelling of 85943321 in words is "eighty-five million, nine hundred forty-three thousand, three hundred twenty-one".