84112489 has 2 divisors, whose sum is σ = 84112490. Its totient is φ = 84112488.

The previous prime is 84112477. The next prime is 84112529. The reversal of 84112489 is 98421148.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62536464 + 21576025 = 7908^2 + 4645^2 .

It is a cyclic number.

It is not a de Polignac number, because 84112489 - 2¹³ = 84104297 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (84112439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42056244 + 42056245.

It is an arithmetic number, because the mean of its divisors is an integer number (42056245).

Almost surely, 2^84112489 is an apocalyptic number.

It is an amenable number.

84112489 is a deficient number, since it is larger than the sum of its proper divisors (1).

84112489 is an equidigital number, since it uses as much as digits as its factorization.

84112489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18432, while the sum is 37.

The square root of 84112489 is about 9171.2861148260. The cubic root of 84112489 is about 438.1473219179.

The spelling of 84112489 in words is "eighty-four million, one hundred twelve thousand, four hundred eighty-nine".