449947699 has 2 divisors, whose sum is σ = 449947700. Its totient is φ = 449947698.

The previous prime is 449947697. The next prime is 449947709. The reversal of 449947699 is 996749944.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 449947699 - 2¹ = 449947697 is a prime.

Together with 449947697, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (449947697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224973849 + 224973850.

It is an arithmetic number, because the mean of its divisors is an integer number (224973850).

Almost surely, 2^449947699 is an apocalyptic number.

449947699 is a deficient number, since it is larger than the sum of its proper divisors (1).

449947699 is an equidigital number, since it uses as much as digits as its factorization.

449947699 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17635968, while the sum is 61.

The square root of 449947699 is about 21211.9706533834. The cubic root of 449947699 is about 766.2797432806.

The spelling of 449947699 in words is "four hundred forty-nine million, nine hundred forty-seven thousand, six hundred ninety-nine".