84906880 has 32 divisors (see below), whose sum is σ = 202982040. Its totient is φ = 33962496.

The previous prime is 84906827. The next prime is 84906883. The reversal of 84906880 is 8860948.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84906883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65694 + ... + 66973.

Almost surely, 2^84906880 is an apocalyptic number.

84906880 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

84906880 is an abundant number, since it is smaller than the sum of its proper divisors (118075160).

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

84906880 is a wasteful number, since it uses less digits than its factorization.

84906880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132686 (or 132674 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 43.

The square root of 84906880 is about 9214.4929323322. The cubic root of 84906880 is about 439.5223466725.

The spelling of 84906880 in words is "eighty-four million, nine hundred six thousand, eight hundred eighty".