83065221 has 12 divisors (see below), whose sum is σ = 122910060. Its totient is φ = 54025920.

The previous prime is 83065219. The next prime is 83065223. The reversal of 83065221 is 12256038.

83065221 is a `hidden beast` number, since 8 + 3 + 0 + 652 + 2 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (83065219) and next prime (83065223).

It can be written as a sum of positive squares in 2 ways, for example, as 3944196 + 79121025 = 1986^2 + 8895^2 .

It is not a de Polignac number, because 83065221 - 2¹ = 83065219 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83065223) 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, 112186 + ... + 112923.

It is an arithmetic number, because the mean of its divisors is an integer number (10242505).

Almost surely, 2^83065221 is an apocalyptic number.

It is an amenable number.

83065221 is a deficient number, since it is larger than the sum of its proper divisors (39844839).

83065221 is a wasteful number, since it uses less digits than its factorization.

83065221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225156 (or 225153 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 83065221 is about 9114.0123436388. The cubic root of 83065221 is about 436.3212937015.

The spelling of 83065221 in words is "eighty-three million, sixty-five thousand, two hundred twenty-one".