83647349 has 2 divisors, whose sum is σ = 83647350. Its totient is φ = 83647348.

The previous prime is 83647321. The next prime is 83647379. The reversal of 83647349 is 94374638.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83594449 + 52900 = 9143^2 + 230^2 .

It is a cyclic number.

It is not a de Polignac number, because 83647349 - 2¹² = 83643253 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 (83647379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41823674 + 41823675.

It is an arithmetic number, because the mean of its divisors is an integer number (41823675).

Almost surely, 2^83647349 is an apocalyptic number.

It is an amenable number.

83647349 is a deficient number, since it is larger than the sum of its proper divisors (1).

83647349 is an equidigital number, since it uses as much as digits as its factorization.

83647349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 44.

The square root of 83647349 is about 9145.8924660199. The cubic root of 83647349 is about 437.3381805901.

The spelling of 83647349 in words is "eighty-three million, six hundred forty-seven thousand, three hundred forty-nine".