4247672647 has 2 divisors, whose sum is σ = 4247672648. Its totient is φ = 4247672646.

The previous prime is 4247672579. The next prime is 4247672687. The reversal of 4247672647 is 7462767424.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4247672647 - 2¹⁹ = 4247148359 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4247672647.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4247672687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2123836323 + 2123836324.

It is an arithmetic number, because the mean of its divisors is an integer number (2123836324).

Almost surely, 2^4247672647 is an apocalyptic number.

4247672647 is a deficient number, since it is larger than the sum of its proper divisors (1).

4247672647 is an equidigital number, since it uses as much as digits as its factorization.

4247672647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3161088, while the sum is 49.

The square root of 4247672647 is about 65174.1716249620. The cubic root of 4247672647 is about 1619.5101713468.

The spelling of 4247672647 in words is "four billion, two hundred forty-seven million, six hundred seventy-two thousand, six hundred forty-seven".