989753 has 2 divisors, whose sum is σ = 989754. Its totient is φ = 989752.

The previous prime is 989749. The next prime is 989761. The reversal of 989753 is 357989.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 727609 + 262144 = 853^2 + 512^2 .

It is an emirp because it is prime and its reverse (357989) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 989753 - 2² = 989749 is a prime.

It is a super-2 number, since 2×989753² = 1959222002018, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 989753.

It is not a weakly prime, because it can be changed into another prime (989743) 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, 494876 + 494877.

It is an arithmetic number, because the mean of its divisors is an integer number (494877).

2⁹⁸⁹⁷⁵³ is an apocalyptic number.

It is an amenable number.

989753 is a deficient number, since it is larger than the sum of its proper divisors (1).

989753 is an equidigital number, since it uses as much as digits as its factorization.

989753 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 68040, while the sum is 41.

The square root of 989753 is about 994.8633071935. The cubic root of 989753 is about 99.6572599681.

The spelling of 989753 in words is "nine hundred eighty-nine thousand, seven hundred fifty-three".