805090339 has 2 divisors, whose sum is σ = 805090340. Its totient is φ = 805090338.

The previous prime is 805090331. The next prime is 805090361. The reversal of 805090339 is 933090508.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 805090339 - 2³ = 805090331 is a prime.

It is a super-2 number, since 2×805090339² = 1296340907902269842, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 805090298 and 805090307.

It is not a weakly prime, because it can be changed into another prime (805090331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402545169 + 402545170.

It is an arithmetic number, because the mean of its divisors is an integer number (402545170).

Almost surely, 2^805090339 is an apocalyptic number.

805090339 is a deficient number, since it is larger than the sum of its proper divisors (1).

805090339 is an equidigital number, since it uses as much as digits as its factorization.

805090339 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 805090339 is about 28374.1138892477. The cubic root of 805090339 is about 930.2825437426.

It can be divided in two parts, 8050 and 90339, that added together give a palindrome (98389).

The spelling of 805090339 in words is "eight hundred five million, ninety thousand, three hundred thirty-nine".