1053989 has 2 divisors, whose sum is σ = 1053990. Its totient is φ = 1053988.

The previous prime is 1053971. The next prime is 1053991. The reversal of 1053989 is 9893501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1050625 + 3364 = 1025^2 + 58^2 .

It is an emirp because it is prime and its reverse (9893501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1053989 - 2¹⁶ = 988453 is a prime.

It is a super-2 number, since 2×1053989² = 2221785624242, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 1053991, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1053959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 526994 + 526995.

It is an arithmetic number, because the mean of its divisors is an integer number (526995).

2^1053989 is an apocalyptic number.

It is an amenable number.

1053989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1053989 is an equidigital number, since it uses as much as digits as its factorization.

1053989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 1053989 is about 1026.6396641471. The cubic root of 1053989 is about 101.7681843032.

The spelling of 1053989 in words is "one million, fifty-three thousand, nine hundred eighty-nine".