809837241 has 16 divisors (see below), whose sum is σ = 1125528384. Its totient is φ = 517454784.

The previous prime is 809837221. The next prime is 809837251. The reversal of 809837241 is 142738908.

It is not a de Polignac number, because 809837241 - 2¹⁰ = 809836217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 809837193 and 809837202.

It is not an unprimeable number, because it can be changed into a prime (809837221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47010 + ... + 61883.

It is an arithmetic number, because the mean of its divisors is an integer number (70345524).

Almost surely, 2^809837241 is an apocalyptic number.

It is an amenable number.

809837241 is a deficient number, since it is larger than the sum of its proper divisors (315691143).

809837241 is a wasteful number, since it uses less digits than its factorization.

809837241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109000.

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 809837241 is about 28457.6394136970. The cubic root of 809837241 is about 932.1073117945.

The spelling of 809837241 in words is "eight hundred nine million, eight hundred thirty-seven thousand, two hundred forty-one".