85212373 has 2 divisors, whose sum is σ = 85212374. Its totient is φ = 85212372.

The previous prime is 85212349. The next prime is 85212403. The reversal of 85212373 is 37321258.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83942244 + 1270129 = 9162^2 + 1127^2 .

It is a cyclic number.

It is not a de Polignac number, because 85212373 - 2⁵ = 85212341 is a prime.

It is a super-2 number, since 2×85212373² = 14522297024582258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85272373) 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, 42606186 + 42606187.

It is an arithmetic number, because the mean of its divisors is an integer number (42606187).

Almost surely, 2^85212373 is an apocalyptic number.

It is an amenable number.

85212373 is a deficient number, since it is larger than the sum of its proper divisors (1).

85212373 is an equidigital number, since it uses as much as digits as its factorization.

85212373 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 31.

The square root of 85212373 is about 9231.0548151335. The cubic root of 85212373 is about 440.0488461612.

It can be divided in two parts, 852 and 12373, that added together give a square (13225 = 115²).

The spelling of 85212373 in words is "eighty-five million, two hundred twelve thousand, three hundred seventy-three".