84187055 has 16 divisors (see below), whose sum is σ = 103615200. Its totient is φ = 65639808.

The previous prime is 84187039. The next prime is 84187057. The reversal of 84187055 is 55078148.

It is a cyclic number.

It is not a de Polignac number, because 84187055 - 2⁴ = 84187039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84187057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42221 + ... + 44169.

It is an arithmetic number, because the mean of its divisors is an integer number (6475950).

Almost surely, 2^84187055 is an apocalyptic number.

84187055 is a deficient number, since it is larger than the sum of its proper divisors (19428145).

84187055 is a wasteful number, since it uses less digits than its factorization.

84187055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2170.

The product of its (nonzero) digits is 44800, while the sum is 38.

The square root of 84187055 is about 9175.3504020283. The cubic root of 84187055 is about 438.2767566946.

The spelling of 84187055 in words is "eighty-four million, one hundred eighty-seven thousand, fifty-five".