1087844 has 12 divisors (see below), whose sum is σ = 1911168. Its totient is φ = 541800.

The previous prime is 1087843. The next prime is 1087861. The reversal of 1087844 is 4487801.

It is a self number, because there is not a number n which added to its sum of digits gives 1087844.

It is not an unprimeable number, because it can be changed into a prime (1087841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1409 + ... + 2039.

It is an arithmetic number, because the mean of its divisors is an integer number (159264).

2^1087844 is an apocalyptic number.

It is an amenable number.

1087844 is a deficient number, since it is larger than the sum of its proper divisors (823324).

1087844 is a wasteful number, since it uses less digits than its factorization.

1087844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066 (or 1064 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 1087844 is about 1042.9976030653. The cubic root of 1087844 is about 102.8463477060.

The spelling of 1087844 in words is "one million, eighty-seven thousand, eight hundred forty-four".