85206419 has 2 divisors, whose sum is σ = 85206420. Its totient is φ = 85206418.

The previous prime is 85206413. The next prime is 85206463. The reversal of 85206419 is 91460258.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85206419 is a prime.

It is a super-2 number, since 2×85206419² = 14520267677607122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (85206413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42603209 + 42603210.

It is an arithmetic number, because the mean of its divisors is an integer number (42603210).

Almost surely, 2^85206419 is an apocalyptic number.

85206419 is a deficient number, since it is larger than the sum of its proper divisors (1).

85206419 is an equidigital number, since it uses as much as digits as its factorization.

85206419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 85206419 is about 9230.7323111441. The cubic root of 85206419 is about 440.0385968208.

The spelling of 85206419 in words is "eighty-five million, two hundred six thousand, four hundred nineteen".