904193 has 2 divisors, whose sum is σ = 904194. Its totient is φ = 904192.

The previous prime is 904181. The next prime is 904201. The reversal of 904193 is 391409.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 734449 + 169744 = 857^2 + 412^2 .

It is a cyclic number.

It is not a de Polignac number, because 904193 - 2¹⁶ = 838657 is a prime.

It is not a weakly prime, because it can be changed into another prime (904103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 452096 + 452097.

It is an arithmetic number, because the mean of its divisors is an integer number (452097).

It is a Proth number, since it is equal to 883 ⋅ 2¹⁰ + 1 and 883 < 2¹⁰.

2⁹⁰⁴¹⁹³ is an apocalyptic number.

It is an amenable number.

904193 is a deficient number, since it is larger than the sum of its proper divisors (1).

904193 is an equidigital number, since it uses as much as digits as its factorization.

904193 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 904193 is about 950.8906351416. The cubic root of 904193 is about 96.6986431404.

The spelling of 904193 in words is "nine hundred four thousand, one hundred ninety-three".