84112417 has 2 divisors, whose sum is σ = 84112418. Its totient is φ = 84112416.

The previous prime is 84112339. The next prime is 84112423. The reversal of 84112417 is 71421148.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66438801 + 17673616 = 8151^2 + 4204^2 .

It is a cyclic number.

It is not a de Polignac number, because 84112417 - 2¹⁹ = 83588129 is a prime.

It is not a weakly prime, because it can be changed into another prime (84112477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42056208 + 42056209.

It is an arithmetic number, because the mean of its divisors is an integer number (42056209).

Almost surely, 2^84112417 is an apocalyptic number.

It is an amenable number.

84112417 is a deficient number, since it is larger than the sum of its proper divisors (1).

84112417 is an equidigital number, since it uses as much as digits as its factorization.

84112417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1792, while the sum is 28.

The square root of 84112417 is about 9171.2821895305. The cubic root of 84112417 is about 438.1471969004.

The spelling of 84112417 in words is "eighty-four million, one hundred twelve thousand, four hundred seventeen".