1982747471 has 2 divisors, whose sum is σ = 1982747472. Its totient is φ = 1982747470.

The previous prime is 1982747449. The next prime is 1982747483. The reversal of 1982747471 is 1747472891.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1982747471 - 2²² = 1978553167 is a prime.

It is a super-3 number, since 3×1982747471³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1982747401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 991373735 + 991373736.

It is an arithmetic number, because the mean of its divisors is an integer number (991373736).

Almost surely, 2^1982747471 is an apocalyptic number.

1982747471 is a deficient number, since it is larger than the sum of its proper divisors (1).

1982747471 is an equidigital number, since it uses as much as digits as its factorization.

1982747471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 790272, while the sum is 50.

The square root of 1982747471 is about 44528.0526297749. The cubic root of 1982747471 is about 1256.2877785195.

The spelling of 1982747471 in words is "one billion, nine hundred eighty-two million, seven hundred forty-seven thousand, four hundred seventy-one".