84888449 has 2 divisors, whose sum is σ = 84888450. Its totient is φ = 84888448.

The previous prime is 84888443. The next prime is 84888473. The reversal of 84888449 is 94488848.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51940849 + 32947600 = 7207^2 + 5740^2 .

It is a cyclic number.

It is not a de Polignac number, because 84888449 - 2²⁴ = 68111233 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 84888449.

It is not a weakly prime, because it can be changed into another prime (84888443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42444224 + 42444225.

It is an arithmetic number, because the mean of its divisors is an integer number (42444225).

Almost surely, 2^84888449 is an apocalyptic number.

It is an amenable number.

84888449 is a deficient number, since it is larger than the sum of its proper divisors (1).

84888449 is an equidigital number, since it uses as much as digits as its factorization.

84888449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2359296, while the sum is 53.

The square root of 84888449 is about 9213.4927687604. The cubic root of 84888449 is about 439.4905415444.

The spelling of 84888449 in words is "eighty-four million, eight hundred eighty-eight thousand, four hundred forty-nine".