1930073 has 2 divisors, whose sum is σ = 1930074. Its totient is φ = 1930072.

The previous prime is 1930057. The next prime is 1930079. The reversal of 1930073 is 3700391.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1885129 + 44944 = 1373^2 + 212^2 .

It is an emirp because it is prime and its reverse (3700391) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1930073 - 2⁴ = 1930057 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1930079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 965036 + 965037.

It is an arithmetic number, because the mean of its divisors is an integer number (965037).

2^1930073 is an apocalyptic number.

It is an amenable number.

1930073 is a deficient number, since it is larger than the sum of its proper divisors (1).

1930073 is an equidigital number, since it uses as much as digits as its factorization.

1930073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 567, while the sum is 23.

The square root of 1930073 is about 1389.2706719714. The cubic root of 1930073 is about 124.5062764641.

The spelling of 1930073 in words is "one million, nine hundred thirty thousand, seventy-three".