2071889387 has 2 divisors, whose sum is σ = 2071889388. Its totient is φ = 2071889386.

The previous prime is 2071889383. The next prime is 2071889401. The reversal of 2071889387 is 7839881702.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2071889387 - 2² = 2071889383 is a prime.

It is not a weakly prime, because it can be changed into another prime (2071889383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1035944693 + 1035944694.

It is an arithmetic number, because the mean of its divisors is an integer number (1035944694).

Almost surely, 2^2071889387 is an apocalyptic number.

2071889387 is a deficient number, since it is larger than the sum of its proper divisors (1).

2071889387 is an equidigital number, since it uses as much as digits as its factorization.

2071889387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1354752, while the sum is 53.

The square root of 2071889387 is about 45518.0116766978. The cubic root of 2071889387 is about 1274.8395311566.

The spelling of 2071889387 in words is "two billion, seventy-one million, eight hundred eighty-nine thousand, three hundred eighty-seven".