2320649 has 2 divisors, whose sum is σ = 2320650. Its totient is φ = 2320648.

The previous prime is 2320639. The next prime is 2320651. The reversal of 2320649 is 9460232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1452025 + 868624 = 1205^2 + 932^2 .

It is a cyclic number.

It is not a de Polignac number, because 2320649 - 2¹² = 2316553 is a prime.

Together with 2320651, it forms a pair of twin primes.

It is a Chen prime.

It is a zygodrome in base 3.

It is not a weakly prime, because it can be changed into another prime (2320639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1160324 + 1160325.

It is an arithmetic number, because the mean of its divisors is an integer number (1160325).

2^2320649 is an apocalyptic number.

It is an amenable number.

2320649 is a deficient number, since it is larger than the sum of its proper divisors (1).

2320649 is an equidigital number, since it uses as much as digits as its factorization.

2320649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 2320649 is about 1523.3676509628. The cubic root of 2320649 is about 132.3944620618.

The spelling of 2320649 in words is "two million, three hundred twenty thousand, six hundred forty-nine".