1982349587 has 2 divisors, whose sum is σ = 1982349588. Its totient is φ = 1982349586.

The previous prime is 1982349541. The next prime is 1982349647. The reversal of 1982349587 is 7859432891.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1982349587 - 2¹⁴ = 1982333203 is a prime.

It is not a weakly prime, because it can be changed into another prime (1982349527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 991174793 + 991174794.

It is an arithmetic number, because the mean of its divisors is an integer number (991174794).

Almost surely, 2^1982349587 is an apocalyptic number.

1982349587 is a deficient number, since it is larger than the sum of its proper divisors (1).

1982349587 is an equidigital number, since it uses as much as digits as its factorization.

1982349587 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4354560, while the sum is 56.

The square root of 1982349587 is about 44523.5846153474. The cubic root of 1982349587 is about 1256.2037385273.

The spelling of 1982349587 in words is "one billion, nine hundred eighty-two million, three hundred forty-nine thousand, five hundred eighty-seven".