447679769 has 2 divisors, whose sum is σ = 447679770. Its totient is φ = 447679768.

The previous prime is 447679709. The next prime is 447679811. The reversal of 447679769 is 967976744.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 252015625 + 195664144 = 15875^2 + 13988^2 .

It is a cyclic number.

It is not a de Polignac number, because 447679769 - 2²⁰ = 446631193 is a prime.

It is a super-2 number, since 2×447679769² = 400834351143786722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (447679709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223839884 + 223839885.

It is an arithmetic number, because the mean of its divisors is an integer number (223839885).

Almost surely, 2^447679769 is an apocalyptic number.

It is an amenable number.

447679769 is a deficient number, since it is larger than the sum of its proper divisors (1).

447679769 is an equidigital number, since it uses as much as digits as its factorization.

447679769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16003008, while the sum is 59.

The square root of 447679769 is about 21158.4443898884. Note that the first 3 decimals coincide. The cubic root of 447679769 is about 764.9901142157.

The spelling of 447679769 in words is "four hundred forty-seven million, six hundred seventy-nine thousand, seven hundred sixty-nine".