1999487411 has 2 divisors, whose sum is σ = 1999487412. Its totient is φ = 1999487410.

The previous prime is 1999487311. The next prime is 1999487417. The reversal of 1999487411 is 1147849991.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1999487411 is a prime.

It is not a weakly prime, because it can be changed into another prime (1999487417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 999743705 + 999743706.

It is an arithmetic number, because the mean of its divisors is an integer number (999743706).

Almost surely, 2^1999487411 is an apocalyptic number.

1999487411 is a deficient number, since it is larger than the sum of its proper divisors (1).

1999487411 is an equidigital number, since it uses as much as digits as its factorization.

1999487411 is an evil number, because the sum of its binary digits is even.

The product of its digits is 653184, while the sum is 53.

The square root of 1999487411 is about 44715.6282635054. The cubic root of 1999487411 is about 1259.8134037528.

The spelling of 1999487411 in words is "one billion, nine hundred ninety-nine million, four hundred eighty-seven thousand, four hundred eleven".