83540808 has 160 divisors (see below), whose sum is σ = 258572160. Its totient is φ = 25038720.

The previous prime is 83540791. The next prime is 83540813. The reversal of 83540808 is 80804538.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 395823 + ... + 396033.

It is an arithmetic number, because the mean of its divisors is an integer number (1616076).

Almost surely, 2^83540808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83540808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129286080).

83540808 is an abundant number, since it is smaller than the sum of its proper divisors (175031352).

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

83540808 is a wasteful number, since it uses less digits than its factorization.

83540808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289 (or 276 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 83540808 is about 9140.0660829121. The cubic root of 83540808 is about 437.1524235837.

It can be divided in two parts, 83540 and 808, that added together give a palindrome (84348).

The spelling of 83540808 in words is "eighty-three million, five hundred forty thousand, eight hundred eight".