2949866947 has 4 divisors (see below), whose sum is σ = 2950054240. Its totient is φ = 2949679656.

The previous prime is 2949866939. The next prime is 2949866971. The reversal of 2949866947 is 7496689492.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2949866947 - 2³ = 2949866939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2949866977) 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, 67608 + ... + 102325.

It is an arithmetic number, because the mean of its divisors is an integer number (737513560).

Almost surely, 2^2949866947 is an apocalyptic number.

2949866947 is a deficient number, since it is larger than the sum of its proper divisors (187293).

2949866947 is a wasteful number, since it uses less digits than its factorization.

2949866947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187292.

The product of its digits is 47029248, while the sum is 64.

The square root of 2949866947 is about 54312.6775900434. The cubic root of 2949866947 is about 1434.1705797080.

The spelling of 2949866947 in words is "two billion, nine hundred forty-nine million, eight hundred sixty-six thousand, nine hundred forty-seven".