1906340773 has 2 divisors, whose sum is σ = 1906340774. Its totient is φ = 1906340772.

The previous prime is 1906340771. The next prime is 1906340819. The reversal of 1906340773 is 3770436091.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1514221569 + 392119204 = 38913^2 + 19802^2 .

It is a cyclic number.

It is not a de Polignac number, because 1906340773 - 2¹ = 1906340771 is a prime.

Together with 1906340771, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1906340771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 953170386 + 953170387.

It is an arithmetic number, because the mean of its divisors is an integer number (953170387).

Almost surely, 2^1906340773 is an apocalyptic number.

It is an amenable number.

1906340773 is a deficient number, since it is larger than the sum of its proper divisors (1).

1906340773 is an equidigital number, since it uses as much as digits as its factorization.

1906340773 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 95256, while the sum is 40.

The square root of 1906340773 is about 43661.6625084295. The cubic root of 1906340773 is about 1239.9385967253.

The spelling of 1906340773 in words is "one billion, nine hundred six million, three hundred forty thousand, seven hundred seventy-three".