85080839 has 2 divisors, whose sum is σ = 85080840. Its totient is φ = 85080838.

The previous prime is 85080829. The next prime is 85080851. The reversal of 85080839 is 93808058.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85080839 - 2¹⁶ = 85015303 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85080796 and 85080805.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85080829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42540419 + 42540420.

It is an arithmetic number, because the mean of its divisors is an integer number (42540420).

Almost surely, 2^85080839 is an apocalyptic number.

85080839 is a deficient number, since it is larger than the sum of its proper divisors (1).

85080839 is an equidigital number, since it uses as much as digits as its factorization.

85080839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 85080839 is about 9223.9275257344. The cubic root of 85080839 is about 439.8223094491.

The spelling of 85080839 in words is "eighty-five million, eighty thousand, eight hundred thirty-nine".