83228279 has 2 divisors, whose sum is σ = 83228280. Its totient is φ = 83228278.

The previous prime is 83228267. The next prime is 83228323. The reversal of 83228279 is 97282238.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83228279 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83228239) 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 as a sum of consecutive naturals, namely, 41614139 + 41614140.

It is an arithmetic number, because the mean of its divisors is an integer number (41614140).

Almost surely, 2^83228279 is an apocalyptic number.

83228279 is a deficient number, since it is larger than the sum of its proper divisors (1).

83228279 is an equidigital number, since it uses as much as digits as its factorization.

83228279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768, while the sum is 41.

The square root of 83228279 is about 9122.9534143281. The cubic root of 83228279 is about 436.6066083579.

The spelling of 83228279 in words is "eighty-three million, two hundred twenty-eight thousand, two hundred seventy-nine".