863393 has 2 divisors, whose sum is σ = 863394. Its totient is φ = 863392.

The previous prime is 863377. The next prime is 863479. The reversal of 863393 is 393368.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 861184 + 2209 = 928^2 + 47^2 .

It is a cyclic number.

It is not a de Polignac number, because 863393 - 2⁴ = 863377 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (863323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 431696 + 431697.

It is an arithmetic number, because the mean of its divisors is an integer number (431697).

2⁸⁶³³⁹³ is an apocalyptic number.

It is an amenable number.

863393 is a deficient number, since it is larger than the sum of its proper divisors (1).

863393 is an equidigital number, since it uses as much as digits as its factorization.

863393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664, while the sum is 32.

The square root of 863393 is about 929.1894317092. The cubic root of 863393 is about 95.2217534382.

The spelling of 863393 in words is "eight hundred sixty-three thousand, three hundred ninety-three".