2353649 has 2 divisors, whose sum is σ = 2353650. Its totient is φ = 2353648.

The previous prime is 2353639. The next prime is 2353651. The reversal of 2353649 is 9463532.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1600225 + 753424 = 1265^2 + 868^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2353649 is a prime.

Together with 2353651, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2353609) 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, 1176824 + 1176825.

It is an arithmetic number, because the mean of its divisors is an integer number (1176825).

2^2353649 is an apocalyptic number.

It is an amenable number.

2353649 is a deficient number, since it is larger than the sum of its proper divisors (1).

2353649 is an equidigital number, since it uses as much as digits as its factorization.

2353649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 32.

The square root of 2353649 is about 1534.1606825884. The cubic root of 2353649 is about 133.0190674982.

The spelling of 2353649 in words is "two million, three hundred fifty-three thousand, six hundred forty-nine".