447750427 has 2 divisors, whose sum is σ = 447750428. Its totient is φ = 447750426.

The previous prime is 447750397. The next prime is 447750439. The reversal of 447750427 is 724057744.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-447750427 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 447750427.

It is not a weakly prime, because it can be changed into another prime (447750467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223875213 + 223875214.

It is an arithmetic number, because the mean of its divisors is an integer number (223875214).

Almost surely, 2^447750427 is an apocalyptic number.

447750427 is a deficient number, since it is larger than the sum of its proper divisors (1).

447750427 is an equidigital number, since it uses as much as digits as its factorization.

447750427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 219520, while the sum is 40.

The square root of 447750427 is about 21160.1140592389. The cubic root of 447750427 is about 765.0303586283.

The spelling of 447750427 in words is "four hundred forty-seven million, seven hundred fifty thousand, four hundred twenty-seven".