85645856 has 12 divisors (see below), whose sum is σ = 168615342. Its totient is φ = 42822912.

The previous prime is 85645849. The next prime is 85645871. The reversal of 85645856 is 65854658.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 82810000 + 2835856 = 9100^2 + 1684^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 85645856.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1338185 + ... + 1338248.

Almost surely, 2^85645856 is an apocalyptic number.

It is an amenable number.

85645856 is a deficient number, since it is larger than the sum of its proper divisors (82969486).

85645856 is a wasteful number, since it uses less digits than its factorization.

85645856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2676443 (or 2676435 counting only the distinct ones).

The product of its digits is 1152000, while the sum is 47.

The square root of 85645856 is about 9254.5046328801. The cubic root of 85645856 is about 440.7937737578.

The spelling of 85645856 in words is "eighty-five million, six hundred forty-five thousand, eight hundred fifty-six".