85534217 has 4 divisors (see below), whose sum is σ = 89253120. Its totient is φ = 81815316.

The previous prime is 85534213. The next prime is 85534249. The reversal of 85534217 is 71243558.

It is a happy number.

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 85534217 - 2² = 85534213 is a prime.

It is a super-2 number, since 2×85534217² = 14632204555606178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85534213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1859417 + ... + 1859462.

It is an arithmetic number, because the mean of its divisors is an integer number (22313280).

Almost surely, 2^85534217 is an apocalyptic number.

It is an amenable number.

85534217 is a deficient number, since it is larger than the sum of its proper divisors (3718903).

85534217 is a wasteful number, since it uses less digits than its factorization.

85534217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3718902.

The product of its digits is 33600, while the sum is 35.

The square root of 85534217 is about 9248.4710628298. The cubic root of 85534217 is about 440.6021662262.

The spelling of 85534217 in words is "eighty-five million, five hundred thirty-four thousand, two hundred seventeen".