84605280 has 48 divisors (see below), whose sum is σ = 266508144. Its totient is φ = 22561280.

The previous prime is 84605249. The next prime is 84605281. The reversal of 84605280 is 8250648.

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

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84605281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87651 + ... + 88610.

It is an arithmetic number, because the mean of its divisors is an integer number (5552253).

Almost surely, 2^84605280 is an apocalyptic number.

84605280 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

84605280 is an abundant number, since it is smaller than the sum of its proper divisors (181902864).

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

84605280 is a wasteful number, since it uses less digits than its factorization.

84605280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176279 (or 176271 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 84605280 is about 9198.1128499274. The cubic root of 84605280 is about 439.0013162339.

The spelling of 84605280 in words is "eighty-four million, six hundred five thousand, two hundred eighty".