441319987 has 2 divisors, whose sum is σ = 441319988. Its totient is φ = 441319986.

The previous prime is 441319981. The next prime is 441320003. The reversal of 441319987 is 789913144.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 441319987 - 2¹⁵ = 441287219 is a prime.

It is not a weakly prime, because it can be changed into another prime (441319981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220659993 + 220659994.

It is an arithmetic number, because the mean of its divisors is an integer number (220659994).

Almost surely, 2^441319987 is an apocalyptic number.

441319987 is a deficient number, since it is larger than the sum of its proper divisors (1).

441319987 is an equidigital number, since it uses as much as digits as its factorization.

441319987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 46.

The square root of 441319987 is about 21007.6173565685. The cubic root of 441319987 is about 761.3503158433.

The spelling of 441319987 in words is "four hundred forty-one million, three hundred nineteen thousand, nine hundred eighty-seven".