1087800 has 144 divisors (see below), whose sum is σ = 4028760. Its totient is φ = 241920.

The previous prime is 1087799. The next prime is 1087811. The reversal of 1087800 is 87801.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 29382 + ... + 29418.

2^1087800 is an apocalyptic number.

1087800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1087800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2014380).

1087800 is an abundant number, since it is smaller than the sum of its proper divisors (2940960).

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

1087800 is a wasteful number, since it uses less digits than its factorization.

1087800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70 (or 54 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 24.

The square root of 1087800 is about 1042.9765098026. The cubic root of 1087800 is about 102.8449610794.

Subtracting from 1087800 its reverse (87801), we obtain a palindrome (999999).

The spelling of 1087800 in words is "one million, eighty-seven thousand, eight hundred".