85289419 has 2 divisors, whose sum is σ = 85289420. Its totient is φ = 85289418.

The previous prime is 85289381. The next prime is 85289467. The reversal of 85289419 is 91498258.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85289419 - 2⁷ = 85289291 is a prime.

It is a super-2 number, since 2×85289419² = 14548569986715122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (85289219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42644709 + 42644710.

It is an arithmetic number, because the mean of its divisors is an integer number (42644710).

Almost surely, 2^85289419 is an apocalyptic number.

85289419 is a deficient number, since it is larger than the sum of its proper divisors (1).

85289419 is an equidigital number, since it uses as much as digits as its factorization.

85289419 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 46.

The square root of 85289419 is about 9235.2270681343. The cubic root of 85289419 is about 440.1814317200.

The spelling of 85289419 in words is "eighty-five million, two hundred eighty-nine thousand, four hundred nineteen".