3147808949 has 2 divisors, whose sum is σ = 3147808950. Its totient is φ = 3147808948.

The previous prime is 3147808933. The next prime is 3147808981. The reversal of 3147808949 is 9498087413.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2717536900 + 430272049 = 52130^2 + 20743^2 .

It is a cyclic number.

It is not a de Polignac number, because 3147808949 - 2⁴ = 3147808933 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3147808949.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3147808999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1573904474 + 1573904475.

It is an arithmetic number, because the mean of its divisors is an integer number (1573904475).

Almost surely, 2^3147808949 is an apocalyptic number.

It is an amenable number.

3147808949 is a deficient number, since it is larger than the sum of its proper divisors (1).

3147808949 is an equidigital number, since it uses as much as digits as its factorization.

3147808949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1741824, while the sum is 53.

The square root of 3147808949 is about 56105.3379724247. The cubic root of 3147808949 is about 1465.5572511507.

The spelling of 3147808949 in words is "three billion, one hundred forty-seven million, eight hundred eight thousand, nine hundred forty-nine".