85221073 has 8 divisors (see below), whose sum is σ = 98360640. Its totient is φ = 72322800.

The previous prime is 85221047. The next prime is 85221079. The reversal of 85221073 is 37012258.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85221073 - 2⁵ = 85221041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85221079) 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 7 ways as a sum of consecutive naturals, for example, 59563 + ... + 60976.

It is an arithmetic number, because the mean of its divisors is an integer number (12295080).

Almost surely, 2^85221073 is an apocalyptic number.

It is an amenable number.

85221073 is a deficient number, since it is larger than the sum of its proper divisors (13139567).

85221073 is a wasteful number, since it uses less digits than its factorization.

85221073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120647.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 85221073 is about 9231.5260385269. The cubic root of 85221073 is about 440.0638216651.

The spelling of 85221073 in words is "eighty-five million, two hundred twenty-one thousand, seventy-three".