1489769 has 2 divisors, whose sum is σ = 1489770. Its totient is φ = 1489768.

The previous prime is 1489757. The next prime is 1489781. The reversal of 1489769 is 9679841.

It is a balanced prime because it is at equal distance from previous prime (1489757) and next prime (1489781).

It can be written as a sum of positive squares in only one way, i.e., 1488400 + 1369 = 1220^2 + 37^2 .

It is a cyclic number.

It is not a de Polignac number, because 1489769 - 2⁴ = 1489753 is a prime.

It is a super-2 number, since 2×1489769² = 4438823346722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1489729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 744884 + 744885.

It is an arithmetic number, because the mean of its divisors is an integer number (744885).

2^1489769 is an apocalyptic number.

It is an amenable number.

1489769 is a deficient number, since it is larger than the sum of its proper divisors (1).

1489769 is an equidigital number, since it uses as much as digits as its factorization.

1489769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 44.

The square root of 1489769 is about 1220.5609366189. The cubic root of 1489769 is about 114.2105731513.

The spelling of 1489769 in words is "one million, four hundred eighty-nine thousand, seven hundred sixty-nine".