83221223 has 4 divisors (see below), whose sum is σ = 83957808. Its totient is φ = 82484640.

The previous prime is 83221181. The next prime is 83221261. The reversal of 83221223 is 32212238.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32212238 = 2 ⋅16106119.

It is a cyclic number.

It is not a de Polignac number, because 83221223 - 2¹⁴ = 83204839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83221123) 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, 368123 + ... + 368348.

It is an arithmetic number, because the mean of its divisors is an integer number (20989452).

Almost surely, 2^83221223 is an apocalyptic number.

83221223 is a deficient number, since it is larger than the sum of its proper divisors (736585).

83221223 is a wasteful number, since it uses less digits than its factorization.

83221223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736584.

The product of its digits is 1152, while the sum is 23.

The square root of 83221223 is about 9122.5666892602. The cubic root of 83221223 is about 436.5942696699.

The spelling of 83221223 in words is "eighty-three million, two hundred twenty-one thousand, two hundred twenty-three".