449776387 has 2 divisors, whose sum is σ = 449776388. Its totient is φ = 449776386.

The previous prime is 449776373. The next prime is 449776421. The reversal of 449776387 is 783677944.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-449776387 is a prime.

It is not a weakly prime, because it can be changed into another prime (449776307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224888193 + 224888194.

It is an arithmetic number, because the mean of its divisors is an integer number (224888194).

Almost surely, 2^449776387 is an apocalyptic number.

449776387 is a deficient number, since it is larger than the sum of its proper divisors (1).

449776387 is an equidigital number, since it uses as much as digits as its factorization.

449776387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7112448, while the sum is 55.

The square root of 449776387 is about 21207.9321717135. The cubic root of 449776387 is about 766.1824804363.

The spelling of 449776387 in words is "four hundred forty-nine million, seven hundred seventy-six thousand, three hundred eighty-seven".