85906211 has 4 divisors (see below), whose sum is σ = 85925352. Its totient is φ = 85887072.

The previous prime is 85906199. The next prime is 85906213. The reversal of 85906211 is 11260958.

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 85906211 - 2⁶ = 85906147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85906213) 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, 1211 + ... + 13163.

It is an arithmetic number, because the mean of its divisors is an integer number (21481338).

Almost surely, 2^85906211 is an apocalyptic number.

85906211 is a deficient number, since it is larger than the sum of its proper divisors (19141).

85906211 is a wasteful number, since it uses less digits than its factorization.

85906211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19140.

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 85906211 is about 9268.5603520719. The cubic root of 85906211 is about 441.2399785326.

The spelling of 85906211 in words is "eighty-five million, nine hundred six thousand, two hundred eleven".