83222791 has 2 divisors, whose sum is σ = 83222792. Its totient is φ = 83222790.

The previous prime is 83222767. The next prime is 83222807. The reversal of 83222791 is 19722238.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83222791 - 2¹¹ = 83220743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83222761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41611395 + 41611396.

It is an arithmetic number, because the mean of its divisors is an integer number (41611396).

Almost surely, 2^83222791 is an apocalyptic number.

83222791 is a deficient number, since it is larger than the sum of its proper divisors (1).

83222791 is an equidigital number, since it uses as much as digits as its factorization.

83222791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 34.

The square root of 83222791 is about 9122.6526295809. The cubic root of 83222791 is about 436.5970116608.

The spelling of 83222791 in words is "eighty-three million, two hundred twenty-two thousand, seven hundred ninety-one".