980641 has 2 divisors, whose sum is σ = 980642. Its totient is φ = 980640.

The previous prime is 980621. The next prime is 980677. The reversal of 980641 is 146089.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 893025 + 87616 = 945^2 + 296^2 .

It is a cyclic number.

It is not a de Polignac number, because 980641 - 2¹⁵ = 947873 is a prime.

It is a Chen prime.

980641 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (980621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 490320 + 490321.

It is an arithmetic number, because the mean of its divisors is an integer number (490321).

2⁹⁸⁰⁶⁴¹ is an apocalyptic number.

It is an amenable number.

980641 is a deficient number, since it is larger than the sum of its proper divisors (1).

980641 is an equidigital number, since it uses as much as digits as its factorization.

980641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 980641 is about 990.2731946286. The cubic root of 980641 is about 99.3504905077.

The spelling of 980641 in words is "nine hundred eighty thousand, six hundred forty-one".