447552649 has 2 divisors, whose sum is σ = 447552650. Its totient is φ = 447552648.

The previous prime is 447552647. The next prime is 447552661. The reversal of 447552649 is 946255744.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 274498624 + 173054025 = 16568^2 + 13155^2 .

It is a cyclic number.

It is not a de Polignac number, because 447552649 - 2¹ = 447552647 is a prime.

Together with 447552647, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 447552599 and 447552608.

It is not a weakly prime, because it can be changed into another prime (447552647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223776324 + 223776325.

It is an arithmetic number, because the mean of its divisors is an integer number (223776325).

Almost surely, 2^447552649 is an apocalyptic number.

It is an amenable number.

447552649 is a deficient number, since it is larger than the sum of its proper divisors (1).

447552649 is an equidigital number, since it uses as much as digits as its factorization.

447552649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1209600, while the sum is 46.

The square root of 447552649 is about 21155.4401750472. The cubic root of 447552649 is about 764.9177002896.

The spelling of 447552649 in words is "four hundred forty-seven million, five hundred fifty-two thousand, six hundred forty-nine".