84501920 has 24 divisors (see below), whose sum is σ = 199636164. Its totient is φ = 33800704.

The previous prime is 84501889. The next prime is 84501959. The reversal of 84501920 is 2910548.

It can be written as a sum of positive squares in 2 ways, for example, as 81072016 + 3429904 = 9004^2 + 1852^2 .

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, 263909 + ... + 264228.

Almost surely, 2^84501920 is an apocalyptic number.

84501920 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

84501920 is an abundant number, since it is smaller than the sum of its proper divisors (115134244).

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

84501920 is a wasteful number, since it uses less digits than its factorization.

84501920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528152 (or 528144 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 84501920 is about 9192.4925890642. The cubic root of 84501920 is about 438.8224713419.

The spelling of 84501920 in words is "eighty-four million, five hundred one thousand, nine hundred twenty".