83885280 has 48 divisors (see below), whose sum is σ = 264240144. Its totient is φ = 22369280.

The previous prime is 83885279. The next prime is 83885297. The reversal of 83885280 is 8258838.

It is a tau number, because it is divible by the number of its divisors (48).

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, 86901 + ... + 87860.

It is an arithmetic number, because the mean of its divisors is an integer number (5505003).

Almost surely, 2^83885280 is an apocalyptic number.

83885280 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

83885280 is an abundant number, since it is smaller than the sum of its proper divisors (180354864).

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

83885280 is a wasteful number, since it uses less digits than its factorization.

83885280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174779 (or 174771 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 42.

The square root of 83885280 is about 9158.8907625323. The cubic root of 83885280 is about 437.7524507628.

The spelling of 83885280 in words is "eighty-three million, eight hundred eighty-five thousand, two hundred eighty".