84028656 has 20 divisors (see below), whose sum is σ = 217074152. Its totient is φ = 28009536.

The previous prime is 84028649. The next prime is 84028673. The reversal of 84028656 is 65682048.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 875251 + ... + 875346.

Almost surely, 2^84028656 is an apocalyptic number.

It is an amenable number.

84028656 is an abundant number, since it is smaller than the sum of its proper divisors (133045496).

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

84028656 is a wasteful number, since it uses less digits than its factorization.

84028656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1750608 (or 1750602 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 39.

The square root of 84028656 is about 9166.7145695718. The cubic root of 84028656 is about 438.0017097158.

The spelling of 84028656 in words is "eighty-four million, twenty-eight thousand, six hundred fifty-six".