84517617 has 8 divisors (see below), whose sum is σ = 117589824. Its totient is φ = 53895248.

The previous prime is 84517607. The next prime is 84517627. The reversal of 84517617 is 71671548.

It is an interprime number because it is at equal distance from previous prime (84517607) and next prime (84517627).

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

It is a cyclic number.

It is not a de Polignac number, because 84517617 - 2²⁰ = 83469041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84517607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 612378 + ... + 612515.

It is an arithmetic number, because the mean of its divisors is an integer number (14698728).

Almost surely, 2^84517617 is an apocalyptic number.

It is an amenable number.

84517617 is a deficient number, since it is larger than the sum of its proper divisors (33072207).

84517617 is a wasteful number, since it uses less digits than its factorization.

84517617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1224919.

The product of its digits is 47040, while the sum is 39.

The square root of 84517617 is about 9193.3463439599. The cubic root of 84517617 is about 438.8496414144.

The spelling of 84517617 in words is "eighty-four million, five hundred seventeen thousand, six hundred seventeen".