84022529 has 2 divisors, whose sum is σ = 84022530. Its totient is φ = 84022528.

The previous prime is 84022513. The next prime is 84022531. The reversal of 84022529 is 92522048.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70896400 + 13126129 = 8420^2 + 3623^2 .

It is a cyclic number.

It is not a de Polignac number, because 84022529 - 2⁴ = 84022513 is a prime.

Together with 84022531, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 84022495 and 84022504.

It is not a weakly prime, because it can be changed into another prime (84022429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42011264 + 42011265.

It is an arithmetic number, because the mean of its divisors is an integer number (42011265).

Almost surely, 2^84022529 is an apocalyptic number.

It is an amenable number.

84022529 is a deficient number, since it is larger than the sum of its proper divisors (1).

84022529 is an equidigital number, since it uses as much as digits as its factorization.

84022529 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 84022529 is about 9166.3803652260. The cubic root of 84022529 is about 437.9910637377.

The spelling of 84022529 in words is "eighty-four million, twenty-two thousand, five hundred twenty-nine".