447426769 has 2 divisors, whose sum is σ = 447426770. Its totient is φ = 447426768.

The previous prime is 447426767. The next prime is 447426787. The reversal of 447426769 is 967624744.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 328878225 + 118548544 = 18135^2 + 10888^2 .

It is a cyclic number.

It is not a de Polignac number, because 447426769 - 2¹ = 447426767 is a prime.

It is a super-2 number, since 2×447426769² = 400381427235558722, which contains 22 as substring.

Together with 447426767, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (447426767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223713384 + 223713385.

It is an arithmetic number, because the mean of its divisors is an integer number (223713385).

Almost surely, 2^447426769 is an apocalyptic number.

It is an amenable number.

447426769 is a deficient number, since it is larger than the sum of its proper divisors (1).

447426769 is an equidigital number, since it uses as much as digits as its factorization.

447426769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2032128, while the sum is 49.

The square root of 447426769 is about 21152.4648445518. The cubic root of 447426769 is about 764.8459792164.

The spelling of 447426769 in words is "four hundred forty-seven million, four hundred twenty-six thousand, seven hundred sixty-nine".