2047847887 has 2 divisors, whose sum is σ = 2047847888. Its totient is φ = 2047847886.

The previous prime is 2047847861. The next prime is 2047847927. The reversal of 2047847887 is 7887487402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2047847887 - 2¹⁹ = 2047323599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2047847827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1023923943 + 1023923944.

It is an arithmetic number, because the mean of its divisors is an integer number (1023923944).

Almost surely, 2^2047847887 is an apocalyptic number.

2047847887 is a deficient number, since it is larger than the sum of its proper divisors (1).

2047847887 is an equidigital number, since it uses as much as digits as its factorization.

2047847887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5619712, while the sum is 55.

The square root of 2047847887 is about 45253.1533376405. The cubic root of 2047847887 is about 1269.8894001273.

The spelling of 2047847887 in words is "two billion, forty-seven million, eight hundred forty-seven thousand, eight hundred eighty-seven".