2320729 has 2 divisors, whose sum is σ = 2320730. Its totient is φ = 2320728.

The previous prime is 2320709. The next prime is 2320739. The reversal of 2320729 is 9270232.

2320729 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1885129 + 435600 = 1373^2 + 660^2 .

It is a cyclic number.

It is not a de Polignac number, because 2320729 - 2⁵ = 2320697 is a prime.

It is equal to p₁₇₀₉₀₈ and since 2320729 and 170908 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (2320709) 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, 1160364 + 1160365.

It is an arithmetic number, because the mean of its divisors is an integer number (1160365).

2^2320729 is an apocalyptic number.

It is an amenable number.

2320729 is a deficient number, since it is larger than the sum of its proper divisors (1).

2320729 is an equidigital number, since it uses as much as digits as its factorization.

2320729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 2320729 is about 1523.3939083507. The cubic root of 2320729 is about 132.3959833942.

The spelling of 2320729 in words is "two million, three hundred twenty thousand, seven hundred twenty-nine".