1087744 has 36 divisors (see below), whose sum is σ = 2485504. Its totient is φ = 465408.

The previous prime is 1087741. The next prime is 1087747. The reversal of 1087744 is 4477801.

It is an interprime number because it is at equal distance from previous prime (1087741) and next prime (1087747).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1087741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1489 + ... + 2095.

2^1087744 is an apocalyptic number.

1087744 is a gapful number since it is divisible by the number (14) 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 1087744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1242752).

1087744 is an abundant number, since it is smaller than the sum of its proper divisors (1397760).

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

1087744 is an frugal number, since it uses more digits than its factorization.

1087744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630 (or 616 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 31.

The square root of 1087744 is about 1042.9496632149. The cubic root of 1087744 is about 102.8431962278.

The spelling of 1087744 in words is "one million, eighty-seven thousand, seven hundred forty-four".