2720329 has 2 divisors, whose sum is σ = 2720330. Its totient is φ = 2720328.

The previous prime is 2720321. The next prime is 2720359. The reversal of 2720329 is 9230272.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2295225 + 425104 = 1515^2 + 652^2 .

It is a cyclic number.

It is not a de Polignac number, because 2720329 - 2³ = 2720321 is a prime.

2720329 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (2720321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1360164 + 1360165.

It is an arithmetic number, because the mean of its divisors is an integer number (1360165).

2^2720329 is an apocalyptic number.

It is an amenable number.

2720329 is a deficient number, since it is larger than the sum of its proper divisors (1).

2720329 is an equidigital number, since it uses as much as digits as its factorization.

2720329 is an evil number, because the sum of its binary digits is even.

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

The square root of 2720329 is about 1649.3419900069. The cubic root of 2720329 is about 139.5962688143.

It can be divided in two parts, 27203 and 29, that multiplied together give a palindrome (788887).

The spelling of 2720329 in words is "two million, seven hundred twenty thousand, three hundred twenty-nine".