2949089909 has 4 divisors (see below), whose sum is σ = 3122565804. Its totient is φ = 2775614016.

The previous prime is 2949089893. The next prime is 2949089911. The reversal of 2949089909 is 9099809492.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2691326884 + 257763025 = 51878^2 + 16055^2 .

It is a cyclic number.

It is not a de Polignac number, because 2949089909 - 2⁴ = 2949089893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2949089929) 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 in 3 ways as a sum of consecutive naturals, for example, 86737922 + ... + 86737955.

It is an arithmetic number, because the mean of its divisors is an integer number (780641451).

Almost surely, 2^2949089909 is an apocalyptic number.

It is an amenable number.

2949089909 is a deficient number, since it is larger than the sum of its proper divisors (173475895).

2949089909 is a wasteful number, since it uses less digits than its factorization.

2949089909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173475894.

The product of its (nonzero) digits is 3779136, while the sum is 59.

The square root of 2949089909 is about 54305.5237429859. The cubic root of 2949089909 is about 1434.0446414964.

The spelling of 2949089909 in words is "two billion, nine hundred forty-nine million, eighty-nine thousand, nine hundred nine".