84022117 has 2 divisors, whose sum is σ = 84022118. Its totient is φ = 84022116.

The previous prime is 84022073. The next prime is 84022139. The reversal of 84022117 is 71122048.

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., 84015556 + 6561 = 9166^2 + 81^2 .

It is a cyclic number.

It is not a de Polignac number, because 84022117 - 2⁷ = 84021989 is a prime.

It is a super-2 number, since 2×84022117² = 14119432290323378, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 84022091 and 84022100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84022187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42011058 + 42011059.

It is an arithmetic number, because the mean of its divisors is an integer number (42011059).

Almost surely, 2^84022117 is an apocalyptic number.

It is an amenable number.

84022117 is a deficient number, since it is larger than the sum of its proper divisors (1).

84022117 is an equidigital number, since it uses as much as digits as its factorization.

84022117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 84022117 is about 9166.3578917692. The cubic root of 84022117 is about 437.9903478479.

The spelling of 84022117 in words is "eighty-four million, twenty-two thousand, one hundred seventeen".