447340417 has 2 divisors, whose sum is σ = 447340418. Its totient is φ = 447340416.

The previous prime is 447340349. The next prime is 447340451. The reversal of 447340417 is 714043744.

It is an a-pointer prime, because the next prime (447340451) can be obtained adding 447340417 to its sum of digits (34).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 269091216 + 178249201 = 16404^2 + 13351^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-447340417 is a prime.

It is a super-2 number, since 2×447340417² = 400226897363467778, which contains 22 as substring.

It is equal to p_23719327 and since 447340417 and 23719327 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (447340717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223670208 + 223670209.

It is an arithmetic number, because the mean of its divisors is an integer number (223670209).

Almost surely, 2^447340417 is an apocalyptic number.

It is an amenable number.

447340417 is a deficient number, since it is larger than the sum of its proper divisors (1).

447340417 is an equidigital number, since it uses as much as digits as its factorization.

447340417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37632, while the sum is 34.

The square root of 447340417 is about 21150.4235654986. The cubic root of 447340417 is about 764.7967717379.

The spelling of 447340417 in words is "four hundred forty-seven million, three hundred forty thousand, four hundred seventeen".