84125855 has 16 divisors (see below), whose sum is σ = 111047328. Its totient is φ = 61177600.

The previous prime is 84125851. The next prime is 84125879. The reversal of 84125855 is 55852148.

It is not a de Polignac number, because 84125855 - 2² = 84125851 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 (84125851) 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 15 ways as a sum of consecutive naturals, for example, 335 + ... + 12975.

It is an arithmetic number, because the mean of its divisors is an integer number (6940458).

Almost surely, 2^84125855 is an apocalyptic number.

84125855 is a deficient number, since it is larger than the sum of its proper divisors (26921473).

84125855 is a wasteful number, since it uses less digits than its factorization.

84125855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12679 (or 12657 counting only the distinct ones).

The product of its digits is 64000, while the sum is 38.

The square root of 84125855 is about 9172.0147732110. The cubic root of 84125855 is about 438.1705288043.

The spelling of 84125855 in words is "eighty-four million, one hundred twenty-five thousand, eight hundred fifty-five".