809048029 has 2 divisors, whose sum is σ = 809048030. Its totient is φ = 809048028.

The previous prime is 809047999. The next prime is 809048047. The reversal of 809048029 is 920840908.

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., 774508900 + 34539129 = 27830^2 + 5877^2 .

It is a cyclic number.

It is not a de Polignac number, because 809048029 - 2¹¹ = 809045981 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 809047982 and 809048000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (809048059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404524014 + 404524015.

It is an arithmetic number, because the mean of its divisors is an integer number (404524015).

Almost surely, 2^809048029 is an apocalyptic number.

It is an amenable number.

809048029 is a deficient number, since it is larger than the sum of its proper divisors (1).

809048029 is an equidigital number, since it uses as much as digits as its factorization.

809048029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 809048029 is about 28443.7695989825. The cubic root of 809048029 is about 931.8044240318.

The spelling of 809048029 in words is "eight hundred nine million, forty-eight thousand, twenty-nine".