85028249 has 4 divisors (see below), whose sum is σ = 89503440. Its totient is φ = 80553060.

The previous prime is 85028239. The next prime is 85028291. The reversal of 85028249 is 94282058.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 85028249 - 2⁴ = 85028233 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (85028239) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2237567 + ... + 2237604.

It is an arithmetic number, because the mean of its divisors is an integer number (22375860).

Almost surely, 2^85028249 is an apocalyptic number.

It is an amenable number.

85028249 is a deficient number, since it is larger than the sum of its proper divisors (4475191).

85028249 is a wasteful number, since it uses less digits than its factorization.

85028249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4475190.

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 85028249 is about 9221.0763471517. The cubic root of 85028249 is about 439.7316700724.

The spelling of 85028249 in words is "eighty-five million, twenty-eight thousand, two hundred forty-nine".