1904233 has 2 divisors, whose sum is σ = 1904234. Its totient is φ = 1904232.

The previous prime is 1904191. The next prime is 1904249. The reversal of 1904233 is 3324091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1734489 + 169744 = 1317^2 + 412^2 .

It is an emirp because it is prime and its reverse (3324091) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1904233 is a prime.

It is a super-2 number, since 2×1904233² = 7252206636578, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1904263) 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, 952116 + 952117.

It is an arithmetic number, because the mean of its divisors is an integer number (952117).

2^1904233 is an apocalyptic number.

It is an amenable number.

1904233 is a deficient number, since it is larger than the sum of its proper divisors (1).

1904233 is an equidigital number, since it uses as much as digits as its factorization.

1904233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 1904233 is about 1379.9394914271. The cubic root of 1904233 is about 123.9481442904.

The spelling of 1904233 in words is "one million, nine hundred four thousand, two hundred thirty-three".