981441 has 6 divisors (see below), whose sum is σ = 1417650. Its totient is φ = 654288.

The previous prime is 981439. The next prime is 981443. The reversal of 981441 is 144189.

It is an interprime number because it is at equal distance from previous prime (981439) and next prime (981443).

It can be written as a sum of positive squares in only one way, i.e., 497025 + 484416 = 705^2 + 696^2 .

It is not a de Polignac number, because 981441 - 2¹ = 981439 is a prime.

It is not an unprimeable number, because it can be changed into a prime (981443) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 54516 + ... + 54533.

It is an arithmetic number, because the mean of its divisors is an integer number (236275).

2⁹⁸¹⁴⁴¹ is an apocalyptic number.

It is an amenable number.

981441 is a deficient number, since it is larger than the sum of its proper divisors (436209).

981441 is a wasteful number, since it uses less digits than its factorization.

981441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109055 (or 109052 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 981441 is about 990.6770412198. The cubic root of 981441 is about 99.3774996405.

The spelling of 981441 in words is "nine hundred eighty-one thousand, four hundred forty-one".