1904263 has 2 divisors, whose sum is σ = 1904264. Its totient is φ = 1904262.

The previous prime is 1904249. The next prime is 1904267. The reversal of 1904263 is 3624091.

It is a strong prime.

It is an emirp because it is prime and its reverse (3624091) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1904263 - 2¹³ = 1896071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1904267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 952131 + 952132.

It is an arithmetic number, because the mean of its divisors is an integer number (952132).

2^1904263 is an apocalyptic number.

1904263 is a deficient number, since it is larger than the sum of its proper divisors (1).

1904263 is an equidigital number, since it uses as much as digits as its factorization.

1904263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 1904263 is about 1379.9503614261. The cubic root of 1904263 is about 123.9487951954.

The spelling of 1904263 in words is "one million, nine hundred four thousand, two hundred sixty-three".