2104043987 has 2 divisors, whose sum is σ = 2104043988. Its totient is φ = 2104043986.

The previous prime is 2104043959. The next prime is 2104044031. The reversal of 2104043987 is 7893404012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2104043987 - 2²⁴ = 2087266771 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2104043987.

It is not a weakly prime, because it can be changed into another prime (2104043917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052021993 + 1052021994.

It is an arithmetic number, because the mean of its divisors is an integer number (1052021994).

Almost surely, 2^2104043987 is an apocalyptic number.

2104043987 is a deficient number, since it is larger than the sum of its proper divisors (1).

2104043987 is an equidigital number, since it uses as much as digits as its factorization.

2104043987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 2104043987 is about 45869.8592432983. The cubic root of 2104043987 is about 1281.4006451242.

Adding to 2104043987 its reverse (7893404012), we get a palindrome (9997447999).

The spelling of 2104043987 in words is "two billion, one hundred four million, forty-three thousand, nine hundred eighty-seven".