83858080 has 24 divisors (see below), whose sum is σ = 198115092. Its totient is φ = 33543168.

The previous prime is 83857999. The next prime is 83858083. The reversal of 83858080 is 8085838.

It can be written as a sum of positive squares in 2 ways, for example, as 78641424 + 5216656 = 8868^2 + 2284^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (83858083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 261897 + ... + 262216.

Almost surely, 2^83858080 is an apocalyptic number.

83858080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

83858080 is an abundant number, since it is smaller than the sum of its proper divisors (114257012).

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

83858080 is a wasteful number, since it uses less digits than its factorization.

83858080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524128 (or 524120 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 40.

The square root of 83858080 is about 9157.4057461707. The cubic root of 83858080 is about 437.7051315596.

The spelling of 83858080 in words is "eighty-three million, eight hundred fifty-eight thousand, eighty".