84342417 has 8 divisors (see below), whose sum is σ = 112824096. Its totient is φ = 56044512.

The previous prime is 84342407. The next prime is 84342437. The reversal of 84342417 is 71424348.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 84342417 - 2⁸ = 84342161 is a prime.

It is a super-2 number, since 2×84342417² = 14227286610803778, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (84342407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44868 + ... + 46709.

It is an arithmetic number, because the mean of its divisors is an integer number (14103012).

Almost surely, 2^84342417 is an apocalyptic number.

It is an amenable number.

84342417 is a deficient number, since it is larger than the sum of its proper divisors (28481679).

84342417 is a wasteful number, since it uses less digits than its factorization.

84342417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91887.

The product of its digits is 21504, while the sum is 33.

The square root of 84342417 is about 9183.8127703041. The cubic root of 84342417 is about 438.5461952288.

The spelling of 84342417 in words is "eighty-four million, three hundred forty-two thousand, four hundred seventeen".