83220743 has 2 divisors, whose sum is σ = 83220744. Its totient is φ = 83220742.

The previous prime is 83220727. The next prime is 83220757. The reversal of 83220743 is 34702238.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83220743 - 2⁴ = 83220727 is a prime.

It is a super-3 number, since 3×83220743³ (a number of 25 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83220713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41610371 + 41610372.

It is an arithmetic number, because the mean of its divisors is an integer number (41610372).

Almost surely, 2^83220743 is an apocalyptic number.

83220743 is a deficient number, since it is larger than the sum of its proper divisors (1).

83220743 is an equidigital number, since it uses as much as digits as its factorization.

83220743 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 83220743 is about 9122.5403808369. The cubic root of 83220743 is about 436.5934302780.

The spelling of 83220743 in words is "eighty-three million, two hundred twenty thousand, seven hundred forty-three".