85813211 has 8 divisors (see below), whose sum is σ = 95606784. Its totient is φ = 76351720.

The previous prime is 85813187. The next prime is 85813219. The reversal of 85813211 is 11231858.

85813211 = T₂₉₈ + T₂₉₉ + ... + T₈₁₄.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85813211 - 2²² = 81618907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85813219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82475 + ... + 83508.

It is an arithmetic number, because the mean of its divisors is an integer number (11950848).

Almost surely, 2^85813211 is an apocalyptic number.

85813211 is a deficient number, since it is larger than the sum of its proper divisors (9793573).

85813211 is a wasteful number, since it uses less digits than its factorization.

85813211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166041.

The product of its digits is 1920, while the sum is 29.

The square root of 85813211 is about 9263.5420331534. The cubic root of 85813211 is about 441.0806957738.

The spelling of 85813211 in words is "eighty-five million, eight hundred thirteen thousand, two hundred eleven".