83243560 has 96 divisors (see below), whose sum is σ = 209988000. Its totient is φ = 29611008.

The previous prime is 83243551. The next prime is 83243591. The reversal of 83243560 is 6534238.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 219451 + ... + 219829.

It is an arithmetic number, because the mean of its divisors is an integer number (2187375).

Almost surely, 2^83243560 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 83243560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104994000).

83243560 is an abundant number, since it is smaller than the sum of its proper divisors (126744440).

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

83243560 is a wasteful number, since it uses less digits than its factorization.

83243560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443 (or 422 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 83243560 is about 9123.7908787959. The cubic root of 83243560 is about 436.6333275507.

Adding to 83243560 its reverse (6534238), we get a palindrome (89777798).

The spelling of 83243560 in words is "eighty-three million, two hundred forty-three thousand, five hundred sixty".