1081447 has 4 divisors (see below), whose sum is σ = 1097656. Its totient is φ = 1065240.

The previous prime is 1081441. The next prime is 1081477. The reversal of 1081447 is 7441801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7441801 = 17 ⋅437753.

It is a cyclic number.

It is not a de Polignac number, because 1081447 - 2¹¹ = 1079399 is a prime.

It is a super-2 number, since 2×1081447² = 2339055227618, which contains 22 as substring.

It is a Duffinian number.

1081447 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1081441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8004 + ... + 8137.

It is an arithmetic number, because the mean of its divisors is an integer number (274414).

2^1081447 is an apocalyptic number.

1081447 is a deficient number, since it is larger than the sum of its proper divisors (16209).

1081447 is an equidigital number, since it uses as much as digits as its factorization.

1081447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16208.

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 1081447 is about 1039.9264397062. The cubic root of 1081447 is about 102.6443573741.

The spelling of 1081447 in words is "one million, eighty-one thousand, four hundred forty-seven".