2947782738 has 16 divisors (see below), whose sum is σ = 5896159776. Its totient is φ = 982495200.

The previous prime is 2947782737. The next prime is 2947782751. The reversal of 2947782738 is 8372877492.

It is not an unprimeable number, because it can be changed into a prime (2947782731) 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 in 7 ways as a sum of consecutive naturals, for example, 64438 + ... + 100238.

It is an arithmetic number, because the mean of its divisors is an integer number (368509986).

Almost surely, 2^2947782738 is an apocalyptic number.

2947782738 is an abundant number, since it is smaller than the sum of its proper divisors (2948377038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2947782738 is a wasteful number, since it uses less digits than its factorization.

2947782738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49529.

The product of its digits is 9483264, while the sum is 57.

The square root of 2947782738 is about 54293.4870679716. The cubic root of 2947782738 is about 1433.8327322119.

The spelling of 2947782738 in words is "two billion, nine hundred forty-seven million, seven hundred eighty-two thousand, seven hundred thirty-eight".