1987948003 has 2 divisors, whose sum is σ = 1987948004. Its totient is φ = 1987948002.

The previous prime is 1987947991. The next prime is 1987948087. The reversal of 1987948003 is 3008497891.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1987948003 - 2²⁹ = 1451077091 is a prime.

It is not a weakly prime, because it can be changed into another prime (1987948103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 993974001 + 993974002.

It is an arithmetic number, because the mean of its divisors is an integer number (993974002).

Almost surely, 2^1987948003 is an apocalyptic number.

1987948003 is a deficient number, since it is larger than the sum of its proper divisors (1).

1987948003 is an equidigital number, since it uses as much as digits as its factorization.

1987948003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 435456, while the sum is 49.

The square root of 1987948003 is about 44586.4105193500. The cubic root of 1987948003 is about 1257.3851885688.

The spelling of 1987948003 in words is "one billion, nine hundred eighty-seven million, nine hundred forty-eight thousand, three".