84442529 has 2 divisors, whose sum is σ = 84442530. Its totient is φ = 84442528.

The previous prime is 84442513. The next prime is 84442541. The reversal of 84442529 is 92524448.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68442529 + 16000000 = 8273^2 + 4000^2 .

It is a cyclic number.

It is not a de Polignac number, because 84442529 - 2⁴ = 84442513 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 84442492 and 84442501.

It is not a weakly prime, because it can be changed into another prime (84442559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42221264 + 42221265.

It is an arithmetic number, because the mean of its divisors is an integer number (42221265).

Almost surely, 2^84442529 is an apocalyptic number.

It is an amenable number.

84442529 is a deficient number, since it is larger than the sum of its proper divisors (1).

84442529 is an equidigital number, since it uses as much as digits as its factorization.

84442529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 92160, while the sum is 38.

The square root of 84442529 is about 9189.2616134268. The cubic root of 84442529 is about 438.7196404888.

The spelling of 84442529 in words is "eighty-four million, four hundred forty-two thousand, five hundred twenty-nine".