84555117 has 8 divisors (see below), whose sum is σ = 125266880. Its totient is φ = 56370060.

The previous prime is 84555103. The next prime is 84555151. The reversal of 84555117 is 71155548.

It is not a de Polignac number, because 84555117 - 2⁷ = 84554989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84555917) 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, 1565809 + ... + 1565862.

It is an arithmetic number, because the mean of its divisors is an integer number (15658360).

Almost surely, 2^84555117 is an apocalyptic number.

It is an amenable number.

84555117 is a deficient number, since it is larger than the sum of its proper divisors (40711763).

84555117 is a wasteful number, since it uses less digits than its factorization.

84555117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3131680 (or 3131674 counting only the distinct ones).

The product of its digits is 28000, while the sum is 36.

The square root of 84555117 is about 9195.3856362852. The cubic root of 84555117 is about 438.9145368717.

The spelling of 84555117 in words is "eighty-four million, five hundred fifty-five thousand, one hundred seventeen".