986641 has 2 divisors, whose sum is σ = 986642. Its totient is φ = 986640.

The previous prime is 986633. The next prime is 986659. The reversal of 986641 is 146689.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 883600 + 103041 = 940^2 + 321^2 .

It is a cyclic number.

It is not a de Polignac number, because 986641 - 2³ = 986633 is a prime.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 986597 and 986606.

It is not a weakly prime, because it can be changed into another prime (986941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493320 + 493321.

It is an arithmetic number, because the mean of its divisors is an integer number (493321).

2⁹⁸⁶⁶⁴¹ is an apocalyptic number.

It is an amenable number.

986641 is a deficient number, since it is larger than the sum of its proper divisors (1).

986641 is an equidigital number, since it uses as much as digits as its factorization.

986641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 34.

The square root of 986641 is about 993.2980418787. The cubic root of 986641 is about 99.5527022302.

The spelling of 986641 in words is "nine hundred eighty-six thousand, six hundred forty-one".