84102080 has 28 divisors (see below), whose sum is σ = 200268840. Its totient is φ = 33640704.

The previous prime is 84102079. The next prime is 84102097. The reversal of 84102080 is 8020148.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131090 + ... + 131729.

Almost surely, 2^84102080 is an apocalyptic number.

84102080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

84102080 is an abundant number, since it is smaller than the sum of its proper divisors (116166760).

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

84102080 is a wasteful number, since it uses less digits than its factorization.

84102080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262836 (or 262826 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 84102080 is about 9170.7186196066. The cubic root of 84102080 is about 438.1292474573.

The spelling of 84102080 in words is "eighty-four million, one hundred two thousand, eighty".