1940893 has 2 divisors, whose sum is σ = 1940894. Its totient is φ = 1940892.

The previous prime is 1940881. The next prime is 1940903. The reversal of 1940893 is 3980491.

1940893 is nontrivially palindromic in base 4.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1855044 + 85849 = 1362^2 + 293^2 .

It is an emirp because it is prime and its reverse (3980491) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1940893 - 2⁹ = 1940381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1940833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 970446 + 970447.

It is an arithmetic number, because the mean of its divisors is an integer number (970447).

2^1940893 is an apocalyptic number.

It is an amenable number.

1940893 is a deficient number, since it is larger than the sum of its proper divisors (1).

1940893 is an equidigital number, since it uses as much as digits as its factorization.

1940893 is an evil number, because the sum of its binary digits is even.

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

The square root of 1940893 is about 1393.1593591546. The cubic root of 1940893 is about 124.7385040069.

The spelling of 1940893 in words is "one million, nine hundred forty thousand, eight hundred ninety-three".