85279211 has 4 divisors (see below), whose sum is σ = 85298424. Its totient is φ = 85260000.

The previous prime is 85279127. The next prime is 85279217. The reversal of 85279211 is 11297258.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85279211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85279217) 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, 836 + ... + 13086.

It is an arithmetic number, because the mean of its divisors is an integer number (21324606).

Almost surely, 2^85279211 is an apocalyptic number.

85279211 is a deficient number, since it is larger than the sum of its proper divisors (19213).

85279211 is a wasteful number, since it uses less digits than its factorization.

85279211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19212.

The product of its digits is 10080, while the sum is 35.

The square root of 85279211 is about 9234.6743851638. The cubic root of 85279211 is about 440.1638697473.

The spelling of 85279211 in words is "eighty-five million, two hundred seventy-nine thousand, two hundred eleven".