84411427 has 4 divisors (see below), whose sum is σ = 85359960. Its totient is φ = 83462896.

The previous prime is 84411391. The next prime is 84411469. The reversal of 84411427 is 72411448.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84411427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84411227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 474133 + ... + 474310.

It is an arithmetic number, because the mean of its divisors is an integer number (21339990).

Almost surely, 2^84411427 is an apocalyptic number.

84411427 is a deficient number, since it is larger than the sum of its proper divisors (948533).

84411427 is an equidigital number, since it uses as much as digits as its factorization.

84411427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 948532.

The product of its digits is 7168, while the sum is 31.

The square root of 84411427 is about 9187.5691562023. The cubic root of 84411427 is about 438.6657705806.

The spelling of 84411427 in words is "eighty-four million, four hundred eleven thousand, four hundred twenty-seven".