82239227 has 4 divisors (see below), whose sum is σ = 93987696. Its totient is φ = 70490760.

The previous prime is 82239221. The next prime is 82239247. The reversal of 82239227 is 72293228.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 82239227 - 2⁸ = 82238971 is a prime.

It is a super-3 number, since 3×82239227³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82239221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5874224 + ... + 5874237.

It is an arithmetic number, because the mean of its divisors is an integer number (23496924).

Almost surely, 2^82239227 is an apocalyptic number.

82239227 is a deficient number, since it is larger than the sum of its proper divisors (11748469).

82239227 is a wasteful number, since it uses less digits than its factorization.

82239227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11748468.

The product of its digits is 24192, while the sum is 35.

The square root of 82239227 is about 9068.5846194431. The cubic root of 82239227 is about 434.8702250830.

The spelling of 82239227 in words is "eighty-two million, two hundred thirty-nine thousand, two hundred twenty-seven".