85212371 has 4 divisors (see below), whose sum is σ = 85240752. Its totient is φ = 85183992.

The previous prime is 85212349. The next prime is 85212373. The reversal of 85212371 is 17321258.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85212371 - 2⁶ = 85212307 is a prime.

It is a super-2 number, since 2×85212371² = 14522296342883282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85212373) 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 in 3 ways as a sum of consecutive naturals, for example, 9071 + ... + 15896.

It is an arithmetic number, because the mean of its divisors is an integer number (21310188).

Almost surely, 2^85212371 is an apocalyptic number.

85212371 is a deficient number, since it is larger than the sum of its proper divisors (28381).

85212371 is a wasteful number, since it uses less digits than its factorization.

85212371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28380.

The product of its digits is 3360, while the sum is 29.

The square root of 85212371 is about 9231.0547068036. The cubic root of 85212371 is about 440.0488427185.

The spelling of 85212371 in words is "eighty-five million, two hundred twelve thousand, three hundred seventy-one".