1906591067 has 2 divisors, whose sum is σ = 1906591068. Its totient is φ = 1906591066.

The previous prime is 1906591033. The next prime is 1906591139. The reversal of 1906591067 is 7601956091.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1906591067 is a prime.

It is not a weakly prime, because it can be changed into another prime (1906591367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 953295533 + 953295534.

It is an arithmetic number, because the mean of its divisors is an integer number (953295534).

Almost surely, 2^1906591067 is an apocalyptic number.

1906591067 is a deficient number, since it is larger than the sum of its proper divisors (1).

1906591067 is an equidigital number, since it uses as much as digits as its factorization.

1906591067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 102060, while the sum is 44.

The square root of 1906591067 is about 43664.5287046591. The cubic root of 1906591067 is about 1239.9928604775.

The spelling of 1906591067 in words is "one billion, nine hundred six million, five hundred ninety-one thousand, sixty-seven".