83942429 has 2 divisors, whose sum is σ = 83942430. Its totient is φ = 83942428.

The previous prime is 83942401. The next prime is 83942459. The reversal of 83942429 is 92424938.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45873529 + 38068900 = 6773^2 + 6170^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83942429 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 (83942459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41971214 + 41971215.

It is an arithmetic number, because the mean of its divisors is an integer number (41971215).

Almost surely, 2^83942429 is an apocalyptic number.

It is an amenable number.

83942429 is a deficient number, since it is larger than the sum of its proper divisors (1).

83942429 is an equidigital number, since it uses as much as digits as its factorization.

83942429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 41.

The square root of 83942429 is about 9162.0100960433. The cubic root of 83942429 is about 437.8518382270.

The spelling of 83942429 in words is "eighty-three million, nine hundred forty-two thousand, four hundred twenty-nine".