85698221 has 8 divisors (see below), whose sum is σ = 98528640. Its totient is φ = 73014768.

The previous prime is 85698211. The next prime is 85698233. The reversal of 85698221 is 12289658.

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 85698221 - 2⁶ = 85698157 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85698211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35486 + ... + 37823.

It is an arithmetic number, because the mean of its divisors is an integer number (12316080).

Almost surely, 2^85698221 is an apocalyptic number.

It is an amenable number.

85698221 is a deficient number, since it is larger than the sum of its proper divisors (12830419).

85698221 is a wasteful number, since it uses less digits than its factorization.

85698221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73483.

The product of its digits is 69120, while the sum is 41.

The square root of 85698221 is about 9257.3333633396. Note that the first 4 decimals coincide. The cubic root of 85698221 is about 440.8835911539.

The spelling of 85698221 in words is "eighty-five million, six hundred ninety-eight thousand, two hundred twenty-one".