85467221 has 12 divisors (see below), whose sum is σ = 99777132. Its totient is φ = 72995328.

The previous prime is 85467209. The next prime is 85467229. The reversal of 85467221 is 12276458.

It can be written as a sum of positive squares in 2 ways, for example, as 36663025 + 48804196 = 6055^2 + 6986^2 .

It is not a de Polignac number, because 85467221 - 2⁶ = 85467157 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 (85467229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11381 + ... + 17333.

It is an arithmetic number, because the mean of its divisors is an integer number (8314761).

Almost surely, 2^85467221 is an apocalyptic number.

It is an amenable number.

85467221 is a deficient number, since it is larger than the sum of its proper divisors (14309911).

85467221 is a wasteful number, since it uses less digits than its factorization.

85467221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6260 (or 6253 counting only the distinct ones).

The product of its digits is 26880, while the sum is 35.

The square root of 85467221 is about 9244.8483492159. The cubic root of 85467221 is about 440.4871000219.

The spelling of 85467221 in words is "eighty-five million, four hundred sixty-seven thousand, two hundred twenty-one".