85344583 has 2 divisors, whose sum is σ = 85344584. Its totient is φ = 85344582.

The previous prime is 85344563. The next prime is 85344601. The reversal of 85344583 is 38544358.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85344583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85344563) 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, 42672291 + 42672292.

It is an arithmetic number, because the mean of its divisors is an integer number (42672292).

Almost surely, 2^85344583 is an apocalyptic number.

85344583 is a deficient number, since it is larger than the sum of its proper divisors (1).

85344583 is an equidigital number, since it uses as much as digits as its factorization.

85344583 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 230400, while the sum is 40.

The square root of 85344583 is about 9238.2131930368. The cubic root of 85344583 is about 440.2763123259.

The spelling of 85344583 in words is "eighty-five million, three hundred forty-four thousand, five hundred eighty-three".