447141623 has 2 divisors, whose sum is σ = 447141624. Its totient is φ = 447141622.

The previous prime is 447141619. The next prime is 447141637. The reversal of 447141623 is 326141744.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 447141623 - 2² = 447141619 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 447141623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (447141683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223570811 + 223570812.

It is an arithmetic number, because the mean of its divisors is an integer number (223570812).

Almost surely, 2^447141623 is an apocalyptic number.

447141623 is a deficient number, since it is larger than the sum of its proper divisors (1).

447141623 is an equidigital number, since it uses as much as digits as its factorization.

447141623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128, while the sum is 32.

The square root of 447141623 is about 21145.7235156426. The cubic root of 447141623 is about 764.6834653829.

The spelling of 447141623 in words is "four hundred forty-seven million, one hundred forty-one thousand, six hundred twenty-three".