3103729 has 2 divisors, whose sum is σ = 3103730. Its totient is φ = 3103728.

The previous prime is 3103693. The next prime is 3103757. The reversal of 3103729 is 9273013.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3069504 + 34225 = 1752^2 + 185^2 .

It is an emirp because it is prime and its reverse (9273013) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3103729 - 2⁷ = 3103601 is a prime.

It is not a weakly prime, because it can be changed into another prime (3103759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1551864 + 1551865.

It is an arithmetic number, because the mean of its divisors is an integer number (1551865).

Almost surely, 2^3103729 is an apocalyptic number.

It is an amenable number.

3103729 is a deficient number, since it is larger than the sum of its proper divisors (1).

3103729 is an equidigital number, since it uses as much as digits as its factorization.

3103729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 3103729 is about 1761.7403327392. The cubic root of 3103729 is about 145.8684152516.

The spelling of 3103729 in words is "three million, one hundred three thousand, seven hundred twenty-nine".