447968765 has 8 divisors (see below), whose sum is σ = 541487160. Its totient is φ = 355758592.

The previous prime is 447968761. The next prime is 447968777. The reversal of 447968765 is 567869744.

It can be written as a sum of positive squares in 4 ways, for example, as 18567481 + 429401284 = 4309^2 + 20722^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 447968765 - 2² = 447968761 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 447968765.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447968761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 326300 + ... + 327669.

It is an arithmetic number, because the mean of its divisors is an integer number (67685895).

Almost surely, 2^447968765 is an apocalyptic number.

It is an amenable number.

447968765 is a deficient number, since it is larger than the sum of its proper divisors (93518395).

447968765 is a wasteful number, since it uses less digits than its factorization.

447968765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654111.

The product of its digits is 10160640, while the sum is 56.

The square root of 447968765 is about 21165.2726181356. The cubic root of 447968765 is about 765.1546898369.

The spelling of 447968765 in words is "four hundred forty-seven million, nine hundred sixty-eight thousand, seven hundred sixty-five".