84582881 has 2 divisors, whose sum is σ = 84582882. Its totient is φ = 84582880.

The previous prime is 84582863. The next prime is 84582899. The reversal of 84582881 is 18828548.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (84582863) and next prime (84582899).

It can be written as a sum of positive squares in only one way, i.e., 75968656 + 8614225 = 8716^2 + 2935^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84582881 is a prime.

It is a super-2 number, since 2×84582881² = 14308527516520322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (84582181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42291440 + 42291441.

It is an arithmetic number, because the mean of its divisors is an integer number (42291441).

Almost surely, 2^84582881 is an apocalyptic number.

It is an amenable number.

84582881 is a deficient number, since it is larger than the sum of its proper divisors (1).

84582881 is an equidigital number, since it uses as much as digits as its factorization.

84582881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163840, while the sum is 44.

The square root of 84582881 is about 9196.8951826146. The cubic root of 84582881 is about 438.9625713770.

The spelling of 84582881 in words is "eighty-four million, five hundred eighty-two thousand, eight hundred eighty-one".