87783318 has 96 divisors (see below), whose sum is σ = 233587200. Its totient is φ = 23935824.

The previous prime is 87783301. The next prime is 87783349. The reversal of 87783318 is 81338778.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 199743 + ... + 200181.

It is an arithmetic number, because the mean of its divisors is an integer number (2433200).

Almost surely, 2^87783318 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87783318, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116793600).

87783318 is an abundant number, since it is smaller than the sum of its proper divisors (145803882).

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

87783318 is a wasteful number, since it uses less digits than its factorization.

87783318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503 (or 474 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 87783318 is about 9369.2752120962. The cubic root of 87783318 is about 444.4306449928.

The spelling of 87783318 in words is "eighty-seven million, seven hundred eighty-three thousand, three hundred eighteen".