1089653 has 2 divisors, whose sum is σ = 1089654. Its totient is φ = 1089652.

The previous prime is 1089629. The next prime is 1089661. The reversal of 1089653 is 3569801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 708964 + 380689 = 842^2 + 617^2 .

It is a cyclic number.

It is not a de Polignac number, because 1089653 - 2⁸ = 1089397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1029653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 544826 + 544827.

It is an arithmetic number, because the mean of its divisors is an integer number (544827).

2^1089653 is an apocalyptic number.

It is an amenable number.

1089653 is a deficient number, since it is larger than the sum of its proper divisors (1).

1089653 is an equidigital number, since it uses as much as digits as its factorization.

1089653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 1089653 is about 1043.8644548024. The cubic root of 1089653 is about 102.9033246285.

It can be divided in two parts, 1089 and 653, that multiplied together give a palindrome (711117).

The spelling of 1089653 in words is "one million, eighty-nine thousand, six hundred fifty-three".