449821087 has 2 divisors, whose sum is σ = 449821088. Its totient is φ = 449821086.

The previous prime is 449821079. The next prime is 449821111. The reversal of 449821087 is 780128944.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 449821087 - 2³ = 449821079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (449821007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224910543 + 224910544.

It is an arithmetic number, because the mean of its divisors is an integer number (224910544).

Almost surely, 2^449821087 is an apocalyptic number.

449821087 is a deficient number, since it is larger than the sum of its proper divisors (1).

449821087 is an equidigital number, since it uses as much as digits as its factorization.

449821087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129024, while the sum is 43.

The square root of 449821087 is about 21208.9859965063. The cubic root of 449821087 is about 766.2078613614.

The spelling of 449821087 in words is "four hundred forty-nine million, eight hundred twenty-one thousand, eighty-seven".