447712206769 has 3 divisors (see below), whose sum is σ = 447712875883. Its totient is φ = 447711537656.

The previous prime is 447712206743. The next prime is 447712206797. The reversal of 447712206769 is 967602217744.

The square root of 447712206769 is 669113.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 152767631025 + 294944575744 = 390855^2 + 543088^2 .

It is not a de Polignac number, because 447712206769 - 2¹⁷ = 447712075697 is a prime.

It is a super-2 number, since 2×447712206769² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (447712206169) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 334557 + ... + 1003669.

Almost surely, 2^447712206769 is an apocalyptic number.

447712206769 is the 669113-rd square number.

447712206769 is the 334557-th centered octagonal number.

It is an amenable number.

447712206769 is a deficient number, since it is larger than the sum of its proper divisors (669114).

447712206769 is an frugal number, since it uses more digits than its factorization.

447712206769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1338226 (or 669113 counting only the distinct ones).

The product of its (nonzero) digits is 7112448, while the sum is 55.

It can be divided in two parts, 447712 and 206769, that added together give a square (654481 = 809²).

The spelling of 447712206769 in words is "four hundred forty-seven billion, seven hundred twelve million, two hundred six thousand, seven hundred sixty-nine".