1087998318 has 80 divisors (see below), whose sum is σ = 2703420720. Its totient is φ = 324259200.

The previous prime is 1087998287. The next prime is 1087998319. The reversal of 1087998318 is 8138997801.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1087998319) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 103698 + ... + 113706.

It is an arithmetic number, because the mean of its divisors is an integer number (33792759).

Almost surely, 2^1087998318 is an apocalyptic number.

1087998318 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1087998318, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1351710360).

1087998318 is an abundant number, since it is smaller than the sum of its proper divisors (1615422402).

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

1087998318 is a wasteful number, since it uses less digits than its factorization.

1087998318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10095 (or 10086 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 54.

The square root of 1087998318 is about 32984.8195083738. The cubic root of 1087998318 is about 1028.5121062513.

The spelling of 1087998318 in words is "one billion, eighty-seven million, nine hundred ninety-eight thousand, three hundred eighteen".