84245171 has 2 divisors, whose sum is σ = 84245172. Its totient is φ = 84245170.

The previous prime is 84245141. The next prime is 84245177. The reversal of 84245171 is 17154248.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84245171 - 2²⁶ = 17136307 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (84245177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42122585 + 42122586.

It is an arithmetic number, because the mean of its divisors is an integer number (42122586).

Almost surely, 2^84245171 is an apocalyptic number.

84245171 is a deficient number, since it is larger than the sum of its proper divisors (1).

84245171 is an equidigital number, since it uses as much as digits as its factorization.

84245171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8960, while the sum is 32.

The square root of 84245171 is about 9178.5168191816. The cubic root of 84245171 is about 438.3775838871.

The spelling of 84245171 in words is "eighty-four million, two hundred forty-five thousand, one hundred seventy-one".