84089856 has 88 divisors (see below), whose sum is σ = 231622144. Its totient is φ = 27095040.

The previous prime is 84089843. The next prime is 84089881. The reversal of 84089856 is 65898048.

It is a super-2 number, since 2×84089856² = 14142207764201472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94791 + ... + 95673.

Almost surely, 2^84089856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84089856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115811072).

84089856 is an abundant number, since it is smaller than the sum of its proper divisors (147532288).

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

84089856 is a wasteful number, since it uses less digits than its factorization.

84089856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 937 (or 919 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 48.

The square root of 84089856 is about 9170.0521263513. The cubic root of 84089856 is about 438.1080194789.

The spelling of 84089856 in words is "eighty-four million, eighty-nine thousand, eight hundred fifty-six".