4056247947 has 4 divisors (see below), whose sum is σ = 5408330600. Its totient is φ = 2704165296.

The previous prime is 4056247883. The next prime is 4056247973. The reversal of 4056247947 is 7497426504.

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

It is not a de Polignac number, because 4056247947 - 2⁶ = 4056247883 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4056247896 and 4056247905.

It is not an unprimeable number, because it can be changed into a prime (4456247947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 676041322 + ... + 676041327.

It is an arithmetic number, because the mean of its divisors is an integer number (1352082650).

Almost surely, 2^4056247947 is an apocalyptic number.

4056247947 is a deficient number, since it is larger than the sum of its proper divisors (1352082653).

4056247947 is a wasteful number, since it uses less digits than its factorization.

4056247947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1352082652.

The product of its (nonzero) digits is 1693440, while the sum is 48.

The square root of 4056247947 is about 63688.6798968231. The cubic root of 4056247947 is about 1594.8071158872.

The spelling of 4056247947 in words is "four billion, fifty-six million, two hundred forty-seven thousand, nine hundred forty-seven".