1982727073 has 2 divisors, whose sum is σ = 1982727074. Its totient is φ = 1982727072.

The previous prime is 1982727023. The next prime is 1982727127. The reversal of 1982727073 is 3707272891.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1578234529 + 404492544 = 39727^2 + 20112^2 .

It is a cyclic number.

It is not a de Polignac number, because 1982727073 - 2⁹ = 1982726561 is a prime.

It is not a weakly prime, because it can be changed into another prime (1982727023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 991363536 + 991363537.

It is an arithmetic number, because the mean of its divisors is an integer number (991363537).

Almost surely, 2^1982727073 is an apocalyptic number.

It is an amenable number.

1982727073 is a deficient number, since it is larger than the sum of its proper divisors (1).

1982727073 is an equidigital number, since it uses as much as digits as its factorization.

1982727073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 296352, while the sum is 46.

The square root of 1982727073 is about 44527.8235825646. The cubic root of 1982727073 is about 1256.2834703821.

The spelling of 1982727073 in words is "one billion, nine hundred eighty-two million, seven hundred twenty-seven thousand, seventy-three".