809741 has 2 divisors, whose sum is σ = 809742. Its totient is φ = 809740.

The previous prime is 809737. The next prime is 809747. The reversal of 809741 is 147908.

809741 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 687241 + 122500 = 829^2 + 350^2 .

It is a cyclic number.

It is not a de Polignac number, because 809741 - 2² = 809737 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (809747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404870 + 404871.

It is an arithmetic number, because the mean of its divisors is an integer number (404871).

2⁸⁰⁹⁷⁴¹ is an apocalyptic number.

It is an amenable number.

809741 is a deficient number, since it is larger than the sum of its proper divisors (1).

809741 is an equidigital number, since it uses as much as digits as its factorization.

809741 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 809741 is about 899.8560996070. The cubic root of 809741 is about 93.2070386476.

The spelling of 809741 in words is "eight hundred nine thousand, seven hundred forty-one".