447340451 has 2 divisors, whose sum is σ = 447340452. Its totient is φ = 447340450.

The previous prime is 447340417. The next prime is 447340519. The reversal of 447340451 is 154043744.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-447340451 is a prime.

It is a super-2 number, since 2×447340451² = 400226958201766802, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (447340151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223670225 + 223670226.

It is an arithmetic number, because the mean of its divisors is an integer number (223670226).

Almost surely, 2^447340451 is an apocalyptic number.

447340451 is a deficient number, since it is larger than the sum of its proper divisors (1).

447340451 is an equidigital number, since it uses as much as digits as its factorization.

447340451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26880, while the sum is 32.

The square root of 447340451 is about 21150.4243692650. The cubic root of 447340451 is about 764.7967911140.

The spelling of 447340451 in words is "four hundred forty-seven million, three hundred forty thousand, four hundred fifty-one".