85649628 has 24 divisors (see below), whose sum is σ = 200027520. Its totient is φ = 28524400.

The previous prime is 85649591. The next prime is 85649647. The reversal of 85649628 is 82694658.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14953 + ... + 19871.

It is an arithmetic number, because the mean of its divisors is an integer number (8334480).

Almost surely, 2^85649628 is an apocalyptic number.

It is an amenable number.

85649628 is an abundant number, since it is smaller than the sum of its proper divisors (114377892).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85649628 is a wasteful number, since it uses less digits than its factorization.

85649628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6377 (or 6375 counting only the distinct ones).

The product of its digits is 829440, while the sum is 48.

The square root of 85649628 is about 9254.7084232838. The cubic root of 85649628 is about 440.8002447839.

The spelling of 85649628 in words is "eighty-five million, six hundred forty-nine thousand, six hundred twenty-eight".