84860055 has 80 divisors (see below), whose sum is σ = 178770240. Its totient is φ = 37698048.

The previous prime is 84860053. The next prime is 84860059. The reversal of 84860055 is 55006848.

It is a happy number.

84860055 is a `hidden beast` number, since 8 + 48 + 600 + 5 + 5 = 666.

It is not a de Polignac number, because 84860055 - 2¹ = 84860053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84860053) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 104491 + ... + 105299.

It is an arithmetic number, because the mean of its divisors is an integer number (2234628).

Almost surely, 2^84860055 is an apocalyptic number.

84860055 is an abundant number, since it is smaller than the sum of its proper divisors (93910185).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84860055 is a wasteful number, since it uses less digits than its factorization.

84860055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870 (or 861 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 84860055 is about 9211.9517475940. The cubic root of 84860055 is about 439.4415349317.

The spelling of 84860055 in words is "eighty-four million, eight hundred sixty thousand, fifty-five".