3849061947 has 12 divisors (see below), whose sum is σ = 5185574136. Its totient is φ = 2539568640.

The previous prime is 3849061921. The next prime is 3849061969. The reversal of 3849061947 is 7491609483.

3849061947 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3849061947 - 2⁸ = 3849061691 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3849061947.

It is not an unprimeable number, because it can be changed into a prime (3849068947) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39954 + ... + 96407.

It is an arithmetic number, because the mean of its divisors is an integer number (432131178).

Almost surely, 2^3849061947 is an apocalyptic number.

3849061947 is a deficient number, since it is larger than the sum of its proper divisors (1336512189).

3849061947 is an equidigital number, since it uses as much as digits as its factorization.

3849061947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136558 (or 136461 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 51.

The square root of 3849061947 is about 62040.8087229688. The cubic root of 3849061947 is about 1567.1779055287.

The spelling of 3849061947 in words is "three billion, eight hundred forty-nine million, sixty-one thousand, nine hundred forty-seven".