84866656 has 24 divisors (see below), whose sum is σ = 190950480. Its totient is φ = 36371328.

The previous prime is 84866633. The next prime is 84866659. The reversal of 84866656 is 65666848.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84866659) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 189211 + ... + 189658.

It is an arithmetic number, because the mean of its divisors is an integer number (7956270).

Almost surely, 2^84866656 is an apocalyptic number.

It is an amenable number.

84866656 is an abundant number, since it is smaller than the sum of its proper divisors (106083824).

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

84866656 is a wasteful number, since it uses less digits than its factorization.

84866656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378886 (or 378878 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 49.

The square root of 84866656 is about 9212.3100251783. The cubic root of 84866656 is about 439.4529289001.

The spelling of 84866656 in words is "eighty-four million, eight hundred sixty-six thousand, six hundred fifty-six".