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966661 is a prime number
BaseRepresentation
bin11101100000000000101
31211010000021
43230000011
5221413121
632415141
711134153
oct3540005
91733007
10966661
116002a3
123a74b1
1327acb7
141b23d3
15141641
hexec005

966661 has 2 divisors, whose sum is σ = 966662. Its totient is φ = 966660.

The previous prime is 966659. The next prime is 966677. The reversal of 966661 is 166669.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 864900 + 101761 = 930^2 + 319^2 .

It is an emirp because it is prime and its reverse (166669) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 966661 - 21 = 966659 is a prime.

Together with 966659, it forms a pair of twin primes.

It is a nialpdrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (966631) 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 as a sum of consecutive naturals, namely, 483330 + 483331.

It is an arithmetic number, because the mean of its divisors is an integer number (483331).

2966661 is an apocalyptic number.

It is an amenable number.

966661 is a deficient number, since it is larger than the sum of its proper divisors (1).

966661 is an equidigital number, since it uses as much as digits as its factorization.

966661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664, while the sum is 34.

The square root of 966661 is about 983.1891984761. The cubic root of 966661 is about 98.8761161712.

The spelling of 966661 in words is "nine hundred sixty-six thousand, six hundred sixty-one".