84083280 has 40 divisors (see below), whose sum is σ = 260658912. Its totient is φ = 22422144.

The previous prime is 84083273. The next prime is 84083291. The reversal of 84083280 is 8238048.

It is a tau number, because it is divible by the number of its divisors (40).

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, 174934 + ... + 175413.

Almost surely, 2^84083280 is an apocalyptic number.

84083280 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

84083280 is an abundant number, since it is smaller than the sum of its proper divisors (176575632).

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

84083280 is a wasteful number, since it uses less digits than its factorization.

84083280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350363 (or 350357 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 84083280 is about 9169.6935608558. The cubic root of 84083280 is about 438.0965988646.

The spelling of 84083280 in words is "eighty-four million, eighty-three thousand, two hundred eighty".