1087808 has 28 divisors (see below), whose sum is σ = 2255520. Its totient is φ = 519552.
The previous prime is 1087799. The next prime is 1087811. The reversal of 1087808 is 8087801.
It is a Harshad number since it is a multiple of its sum of digits (32).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1103 + ... + 1841.
21087808 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 1087808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1127760).
1087808 is an abundant number, since it is smaller than the sum of its proper divisors (1167712).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1087808 is an equidigital number, since it uses as much as digits as its factorization.
1087808 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 774 (or 764 counting only the distinct ones).
The product of its (nonzero) digits is 3584, while the sum is 32.
The square root of 1087808 is about 1042.9803449730. The cubic root of 1087808 is about 102.8452131961.
The spelling of 1087808 in words is "one million, eighty-seven thousand, eight hundred eight".
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