4247438547 has 32 divisors (see below), whose sum is σ = 6250742784. Its totient is φ = 2544032000.

The previous prime is 4247438521. The next prime is 4247438549. The reversal of 4247438547 is 7458347424.

It is a cyclic number.

It is not a de Polignac number, because 4247438547 - 2³⁰ = 3173696723 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4247438496 and 4247438505.

It is not an unprimeable number, because it can be changed into a prime (4247438549) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2855638 + ... + 2857124.

It is an arithmetic number, because the mean of its divisors is an integer number (195335712).

Almost surely, 2^4247438547 is an apocalyptic number.

4247438547 is a deficient number, since it is larger than the sum of its proper divisors (2003304237).

4247438547 is a wasteful number, since it uses less digits than its factorization.

4247438547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2459.

The product of its digits is 3010560, while the sum is 48.

The square root of 4247438547 is about 65172.3756433660. The cubic root of 4247438547 is about 1619.4804190308.

The spelling of 4247438547 in words is "four billion, two hundred forty-seven million, four hundred thirty-eight thousand, five hundred forty-seven".