2012003989 has 2 divisors, whose sum is σ = 2012003990. Its totient is φ = 2012003988.

The previous prime is 2012003953. The next prime is 2012004023. The reversal of 2012003989 is 9893002102.

It is an a-pointer prime, because the next prime (2012004023) can be obtained adding 2012003989 to its sum of digits (34).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2010804964 + 1199025 = 44842^2 + 1095^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2012003989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2012003089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006001994 + 1006001995.

It is an arithmetic number, because the mean of its divisors is an integer number (1006001995).

Almost surely, 2^2012003989 is an apocalyptic number.

It is an amenable number.

2012003989 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012003989 is an equidigital number, since it uses as much as digits as its factorization.

2012003989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 2012003989 is about 44855.3674491693. The cubic root of 2012003989 is about 1262.4367033456.

The spelling of 2012003989 in words is "two billion, twelve million, three thousand, nine hundred eighty-nine".