989441 has 2 divisors, whose sum is σ = 989442. Its totient is φ = 989440.

The previous prime is 989423. The next prime is 989467. The reversal of 989441 is 144989.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 817216 + 172225 = 904^2 + 415^2 .

It is a cyclic number.

It is not a de Polignac number, because 989441 - 2⁶ = 989377 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 989441.

It is not a weakly prime, because it can be changed into another prime (989411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494720 + 494721.

It is an arithmetic number, because the mean of its divisors is an integer number (494721).

2⁹⁸⁹⁴⁴¹ is an apocalyptic number.

It is an amenable number.

989441 is a deficient number, since it is larger than the sum of its proper divisors (1).

989441 is an equidigital number, since it uses as much as digits as its factorization.

989441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 35.

The square root of 989441 is about 994.7064893726. The cubic root of 989441 is about 99.6467872095.

The spelling of 989441 in words is "nine hundred eighty-nine thousand, four hundred forty-one".