1324649 has 2 divisors, whose sum is σ = 1324650. Its totient is φ = 1324648.

The previous prime is 1324627. The next prime is 1324651. The reversal of 1324649 is 9464231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1081600 + 243049 = 1040^2 + 493^2 .

It is a cyclic number.

It is not a de Polignac number, because 1324649 - 2¹⁶ = 1259113 is a prime.

It is a Sophie Germain prime.

Together with 1324651, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1324619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 662324 + 662325.

It is an arithmetic number, because the mean of its divisors is an integer number (662325).

2^1324649 is an apocalyptic number.

It is an amenable number.

1324649 is a deficient number, since it is larger than the sum of its proper divisors (1).

1324649 is an equidigital number, since it uses as much as digits as its factorization.

1324649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 29.

The square root of 1324649 is about 1150.9339685664. The cubic root of 1324649 is about 109.8247623046.

The spelling of 1324649 in words is "one million, three hundred twenty-four thousand, six hundred forty-nine".