1940903 has 2 divisors, whose sum is σ = 1940904. Its totient is φ = 1940902.

The previous prime is 1940893. The next prime is 1940929. The reversal of 1940903 is 3090491.

It is a happy number.

It is an a-pointer prime, because the next prime (1940929) can be obtained adding 1940903 to its sum of digits (26).

It is a weak prime.

It is an emirp because it is prime and its reverse (3090491) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1940903 - 2¹⁰ = 1939879 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1945903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 970451 + 970452.

It is an arithmetic number, because the mean of its divisors is an integer number (970452).

2^1940903 is an apocalyptic number.

1940903 is a deficient number, since it is larger than the sum of its proper divisors (1).

1940903 is an equidigital number, since it uses as much as digits as its factorization.

1940903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 1940903 is about 1393.1629481148. The cubic root of 1940903 is about 124.7387182352.

The spelling of 1940903 in words is "one million, nine hundred forty thousand, nine hundred three".