447561383 has 2 divisors, whose sum is σ = 447561384. Its totient is φ = 447561382.

The previous prime is 447561377. The next prime is 447561409. The reversal of 447561383 is 383165744.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-447561383 is a prime.

It is a super-2 number, since 2×447561383² = 400622383105745378, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 447561383.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (447561343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223780691 + 223780692.

It is an arithmetic number, because the mean of its divisors is an integer number (223780692).

Almost surely, 2^447561383 is an apocalyptic number.

447561383 is a deficient number, since it is larger than the sum of its proper divisors (1).

447561383 is an equidigital number, since it uses as much as digits as its factorization.

447561383 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 41.

The square root of 447561383 is about 21155.6465984852. The cubic root of 447561383 is about 764.9226760526.

The spelling of 447561383 in words is "four hundred forty-seven million, five hundred sixty-one thousand, three hundred eighty-three".