1089457 has 2 divisors, whose sum is σ = 1089458. Its totient is φ = 1089456.

The previous prime is 1089427. The next prime is 1089461. The reversal of 1089457 is 7549801.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1083681 + 5776 = 1041^2 + 76^2 .

It is a cyclic number.

It is not a de Polignac number, because 1089457 - 2¹¹ = 1087409 is a prime.

It is not a weakly prime, because it can be changed into another prime (1089427) 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, 544728 + 544729.

It is an arithmetic number, because the mean of its divisors is an integer number (544729).

2^1089457 is an apocalyptic number.

It is an amenable number.

1089457 is a deficient number, since it is larger than the sum of its proper divisors (1).

1089457 is an equidigital number, since it uses as much as digits as its factorization.

1089457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 1089457 is about 1043.7705686596. The cubic root of 1089457 is about 102.8971543886.

The spelling of 1089457 in words is "one million, eighty-nine thousand, four hundred fifty-seven".