85303213 has 2 divisors, whose sum is σ = 85303214. Its totient is φ = 85303212.

The previous prime is 85303199. The next prime is 85303219. The reversal of 85303213 is 31230358.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63792169 + 21511044 = 7987^2 + 4638^2 .

It is a cyclic number.

It is not a de Polignac number, because 85303213 - 2¹⁷ = 85172141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85303219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42651606 + 42651607.

It is an arithmetic number, because the mean of its divisors is an integer number (42651607).

Almost surely, 2^85303213 is an apocalyptic number.

It is an amenable number.

85303213 is a deficient number, since it is larger than the sum of its proper divisors (1).

85303213 is an equidigital number, since it uses as much as digits as its factorization.

85303213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 85303213 is about 9235.9738522800. The cubic root of 85303213 is about 440.2051608665.

The spelling of 85303213 in words is "eighty-five million, three hundred three thousand, two hundred thirteen".