85222867 has 2 divisors, whose sum is σ = 85222868. Its totient is φ = 85222866.

The previous prime is 85222807. The next prime is 85222931. The reversal of 85222867 is 76822258.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85222867 is a prime.

It is equal to p_4955872 and since 85222867 and 4955872 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (85222807) 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 as a sum of consecutive naturals, namely, 42611433 + 42611434.

It is an arithmetic number, because the mean of its divisors is an integer number (42611434).

Almost surely, 2^85222867 is an apocalyptic number.

85222867 is a deficient number, since it is larger than the sum of its proper divisors (1).

85222867 is an equidigital number, since it uses as much as digits as its factorization.

85222867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 107520, while the sum is 40.

The square root of 85222867 is about 9231.6232050490. The cubic root of 85222867 is about 440.0669095906.

The spelling of 85222867 in words is "eighty-five million, two hundred twenty-two thousand, eight hundred sixty-seven".