450645847 has 2 divisors, whose sum is σ = 450645848. Its totient is φ = 450645846.

The previous prime is 450645821. The next prime is 450645889. The reversal of 450645847 is 748546054.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-450645847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (450640847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225322923 + 225322924.

It is an arithmetic number, because the mean of its divisors is an integer number (225322924).

Almost surely, 2^450645847 is an apocalyptic number.

450645847 is a deficient number, since it is larger than the sum of its proper divisors (1).

450645847 is an equidigital number, since it uses as much as digits as its factorization.

450645847 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 537600, while the sum is 43.

The square root of 450645847 is about 21228.4207373040. The cubic root of 450645847 is about 766.6758635528.

The spelling of 450645847 in words is "four hundred fifty million, six hundred forty-five thousand, eight hundred forty-seven".