85647722 has 16 divisors (see below), whose sum is σ = 135317952. Its totient is φ = 40576800.

The previous prime is 85647719. The next prime is 85647743. The reversal of 85647722 is 22774658.

It is a self number, because there is not a number n which added to its sum of digits gives 85647722.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3779 + ... + 13622.

It is an arithmetic number, because the mean of its divisors is an integer number (8457372).

Almost surely, 2^85647722 is an apocalyptic number.

85647722 is a deficient number, since it is larger than the sum of its proper divisors (49670230).

85647722 is a wasteful number, since it uses less digits than its factorization.

85647722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17533.

The product of its digits is 188160, while the sum is 41.

The square root of 85647722 is about 9254.6054480999. The cubic root of 85647722 is about 440.7969749837.

The spelling of 85647722 in words is "eighty-five million, six hundred forty-seven thousand, seven hundred twenty-two".