2947738385 has 16 divisors (see below), whose sum is σ = 3750085632. Its totient is φ = 2220436800.

The previous prime is 2947738373. The next prime is 2947738411. The reversal of 2947738385 is 5838377492.

It is not a de Polignac number, because 2947738385 - 2⁴ = 2947738369 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2947738385.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 251261 + ... + 262730.

It is an arithmetic number, because the mean of its divisors is an integer number (234380352).

Almost surely, 2^2947738385 is an apocalyptic number.

It is an amenable number.

2947738385 is a deficient number, since it is larger than the sum of its proper divisors (802347247).

2947738385 is a wasteful number, since it uses less digits than its factorization.

2947738385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514064.

The product of its digits is 10160640, while the sum is 56.

The square root of 2947738385 is about 54293.0786104454. The cubic root of 2947738385 is about 1433.8255409196.

The spelling of 2947738385 in words is "two billion, nine hundred forty-seven million, seven hundred thirty-eight thousand, three hundred eighty-five".