809093 has 2 divisors, whose sum is σ = 809094. Its totient is φ = 809092.

The previous prime is 809087. The next prime is 809101. The reversal of 809093 is 390908.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 743044 + 66049 = 862^2 + 257^2 .

It is a cyclic number.

It is not a de Polignac number, because 809093 - 2⁸ = 808837 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (809023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404546 + 404547.

It is an arithmetic number, because the mean of its divisors is an integer number (404547).

2⁸⁰⁹⁰⁹³ is an apocalyptic number.

It is an amenable number.

809093 is a deficient number, since it is larger than the sum of its proper divisors (1).

809093 is an equidigital number, since it uses as much as digits as its factorization.

809093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 809093 is about 899.4959699743. The cubic root of 809093 is about 93.1821688520.

The spelling of 809093 in words is "eight hundred nine thousand, ninety-three".