85284211 has 4 divisors (see below), whose sum is σ = 85356424. Its totient is φ = 85212000.

The previous prime is 85284209. The next prime is 85284229. The reversal of 85284211 is 11248258.

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 85284211 - 2¹ = 85284209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85284011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34305 + ... + 36706.

It is an arithmetic number, because the mean of its divisors is an integer number (21339106).

Almost surely, 2^85284211 is an apocalyptic number.

85284211 is a deficient number, since it is larger than the sum of its proper divisors (72213).

85284211 is a wasteful number, since it uses less digits than its factorization.

85284211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72212.

The product of its digits is 5120, while the sum is 31.

The square root of 85284211 is about 9234.9450999992. The cubic root of 85284211 is about 440.1724719858.

The spelling of 85284211 in words is "eighty-five million, two hundred eighty-four thousand, two hundred eleven".