84245285 has 16 divisors (see below), whose sum is σ = 108515376. Its totient is φ = 62558208.

The previous prime is 84245279. The next prime is 84245309. The reversal of 84245285 is 58254248.

It can be written as a sum of positive squares in 8 ways, for example, as 13315201 + 70930084 = 3649^2 + 8422^2 .

It is a cyclic number.

It is not a de Polignac number, because 84245285 - 2⁴ = 84245269 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 584 + ... + 12993.

It is an arithmetic number, because the mean of its divisors is an integer number (6782211).

Almost surely, 2^84245285 is an apocalyptic number.

84245285 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

84245285 is a deficient number, since it is larger than the sum of its proper divisors (24270091).

84245285 is a wasteful number, since it uses less digits than its factorization.

84245285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13672.

The product of its digits is 102400, while the sum is 38.

The square root of 84245285 is about 9178.5230293332. The cubic root of 84245285 is about 438.3777816236.

The spelling of 84245285 in words is "eighty-four million, two hundred forty-five thousand, two hundred eighty-five".