4238997547 has 2 divisors, whose sum is σ = 4238997548. Its totient is φ = 4238997546.

The previous prime is 4238997533. The next prime is 4238997559. The reversal of 4238997547 is 7457998324.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4238997547 - 2¹¹ = 4238995499 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4238997491 and 4238997500.

It is not a weakly prime, because it can be changed into another prime (4238997517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2119498773 + 2119498774.

It is an arithmetic number, because the mean of its divisors is an integer number (2119498774).

Almost surely, 2^4238997547 is an apocalyptic number.

4238997547 is a deficient number, since it is larger than the sum of its proper divisors (1).

4238997547 is an equidigital number, since it uses as much as digits as its factorization.

4238997547 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15240960, while the sum is 58.

The square root of 4238997547 is about 65107.5844045838. The cubic root of 4238997547 is about 1618.4069014560.

The spelling of 4238997547 in words is "four billion, two hundred thirty-eight million, nine hundred ninety-seven thousand, five hundred forty-seven".