85422865 has 16 divisors (see below), whose sum is σ = 112046976. Its totient is φ = 62003200.

The previous prime is 85422863. The next prime is 85422877. The reversal of 85422865 is 56822458.

It is not a de Polignac number, because 85422865 - 2¹ = 85422863 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85422863) 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 15 ways as a sum of consecutive naturals, for example, 34044 + ... + 36466.

It is an arithmetic number, because the mean of its divisors is an integer number (7002936).

Almost surely, 2^85422865 is an apocalyptic number.

It is an amenable number.

85422865 is a deficient number, since it is larger than the sum of its proper divisors (26624111).

85422865 is a wasteful number, since it uses less digits than its factorization.

85422865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3080.

The product of its digits is 153600, while the sum is 40.

The square root of 85422865 is about 9242.4490801951. The cubic root of 85422865 is about 440.4108851232.

The spelling of 85422865 in words is "eighty-five million, four hundred twenty-two thousand, eight hundred sixty-five".