85645628 has 6 divisors (see below), whose sum is σ = 149879856. Its totient is φ = 42822812.

The previous prime is 85645607. The next prime is 85645657. The reversal of 85645628 is 82654658.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10705700 + ... + 10705707.

It is an arithmetic number, because the mean of its divisors is an integer number (24979976).

Almost surely, 2^85645628 is an apocalyptic number.

It is an amenable number.

85645628 is a deficient number, since it is larger than the sum of its proper divisors (64234228).

85645628 is a wasteful number, since it uses less digits than its factorization.

85645628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21411411 (or 21411409 counting only the distinct ones).

The product of its digits is 460800, while the sum is 44.

The square root of 85645628 is about 9254.4923145465. The cubic root of 85645628 is about 440.7933826080.

The spelling of 85645628 in words is "eighty-five million, six hundred forty-five thousand, six hundred twenty-eight".