3097728449 has 2 divisors, whose sum is σ = 3097728450. Its totient is φ = 3097728448.

The previous prime is 3097728419. The next prime is 3097728461. The reversal of 3097728449 is 9448277903.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3093028225 + 4700224 = 55615^2 + 2168^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3097728449 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3097728449.

It is not a weakly prime, because it can be changed into another prime (3097728419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1548864224 + 1548864225.

It is an arithmetic number, because the mean of its divisors is an integer number (1548864225).

Almost surely, 2^3097728449 is an apocalyptic number.

It is an amenable number.

3097728449 is a deficient number, since it is larger than the sum of its proper divisors (1).

3097728449 is an equidigital number, since it uses as much as digits as its factorization.

3097728449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3048192, while the sum is 53.

The square root of 3097728449 is about 55657.2407598508. The cubic root of 3097728449 is about 1457.7435038650.

The spelling of 3097728449 in words is "three billion, ninety-seven million, seven hundred twenty-eight thousand, four hundred forty-nine".