2947749609 has 8 divisors (see below), whose sum is σ = 4491808960. Its totient is φ = 1684428336.

The previous prime is 2947749583. The next prime is 2947749611. The reversal of 2947749609 is 9069477492.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2947749609 - 2⁹ = 2947749097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2947744609) 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 7 ways as a sum of consecutive naturals, for example, 70184494 + ... + 70184535.

It is an arithmetic number, because the mean of its divisors is an integer number (561476120).

Almost surely, 2^2947749609 is an apocalyptic number.

It is an amenable number.

2947749609 is a deficient number, since it is larger than the sum of its proper divisors (1544059351).

2947749609 is a wasteful number, since it uses less digits than its factorization.

2947749609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140369039.

The product of its (nonzero) digits is 6858432, while the sum is 57.

The square root of 2947749609 is about 54293.1819752720. The cubic root of 2947749609 is about 1433.8273607597.

The spelling of 2947749609 in words is "two billion, nine hundred forty-seven million, seven hundred forty-nine thousand, six hundred nine".