447676561 has 2 divisors, whose sum is σ = 447676562. Its totient is φ = 447676560.

The previous prime is 447676547. The next prime is 447676571. The reversal of 447676561 is 165676744.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 276590161 + 171086400 = 16631^2 + 13080^2 .

It is a cyclic number.

It is not a de Polignac number, because 447676561 - 2¹⁵ = 447643793 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (447676511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223838280 + 223838281.

It is an arithmetic number, because the mean of its divisors is an integer number (223838281).

Almost surely, 2^447676561 is an apocalyptic number.

It is an amenable number.

447676561 is a deficient number, since it is larger than the sum of its proper divisors (1).

447676561 is an equidigital number, since it uses as much as digits as its factorization.

447676561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 846720, while the sum is 46.

The square root of 447676561 is about 21158.3685807767. The cubic root of 447676561 is about 764.9882869467.

The spelling of 447676561 in words is "four hundred forty-seven million, six hundred seventy-six thousand, five hundred sixty-one".