447050621 has 2 divisors, whose sum is σ = 447050622. Its totient is φ = 447050620.

The previous prime is 447050603. The next prime is 447050623. The reversal of 447050621 is 126050744.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 446265625 + 784996 = 21125^2 + 886^2 .

It is a cyclic number.

It is not a de Polignac number, because 447050621 - 2⁶ = 447050557 is a prime.

Together with 447050623, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (447050623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223525310 + 223525311.

It is an arithmetic number, because the mean of its divisors is an integer number (223525311).

Almost surely, 2^447050621 is an apocalyptic number.

It is an amenable number.

447050621 is a deficient number, since it is larger than the sum of its proper divisors (1).

447050621 is an equidigital number, since it uses as much as digits as its factorization.

447050621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 447050621 is about 21143.5716235455. The cubic root of 447050621 is about 764.6315858869.

The spelling of 447050621 in words is "four hundred forty-seven million, fifty thousand, six hundred twenty-one".