2949931909 has 2 divisors, whose sum is σ = 2949931910. Its totient is φ = 2949931908.

The previous prime is 2949931891. The next prime is 2949931979. The reversal of 2949931909 is 9091399492.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2554797025 + 395134884 = 50545^2 + 19878^2 .

It is a cyclic number.

It is not a de Polignac number, because 2949931909 - 2¹¹ = 2949929861 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2949931909.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2949931979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1474965954 + 1474965955.

It is an arithmetic number, because the mean of its divisors is an integer number (1474965955).

Almost surely, 2^2949931909 is an apocalyptic number.

It is an amenable number.

2949931909 is a deficient number, since it is larger than the sum of its proper divisors (1).

2949931909 is an equidigital number, since it uses as much as digits as its factorization.

2949931909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1417176, while the sum is 55.

The square root of 2949931909 is about 54313.2756239209. The cubic root of 2949931909 is about 1434.1811074037.

The spelling of 2949931909 in words is "two billion, nine hundred forty-nine million, nine hundred thirty-one thousand, nine hundred nine".