964889 has 2 divisors, whose sum is σ = 964890. Its totient is φ = 964888.

The previous prime is 964883. The next prime is 964897. The reversal of 964889 is 988469.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 960400 + 4489 = 980^2 + 67^2 .

It is a cyclic number.

It is not a de Polignac number, because 964889 - 2¹² = 960793 is a prime.

It is a Sophie Germain prime.

It is a Chen 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 964889.

It is not a weakly prime, because it can be changed into another prime (964883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 482444 + 482445.

It is an arithmetic number, because the mean of its divisors is an integer number (482445).

2⁹⁶⁴⁸⁸⁹ is an apocalyptic number.

It is an amenable number.

964889 is a deficient number, since it is larger than the sum of its proper divisors (1).

964889 is an equidigital number, since it uses as much as digits as its factorization.

964889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 44.

The square root of 964889 is about 982.2876360822. The cubic root of 964889 is about 98.8156621458.

The spelling of 964889 in words is "nine hundred sixty-four thousand, eight hundred eighty-nine".