447270785 has 16 divisors (see below), whose sum is σ = 578560080. Its totient is φ = 329978880.

The previous prime is 447270779. The next prime is 447270787. The reversal of 447270785 is 587072744.

It can be written as a sum of positive squares in 8 ways, for example, as 42094144 + 405176641 = 6488^2 + 20129^2 .

It is not a de Polignac number, because 447270785 - 2²⁶ = 380161921 is a prime.

It is a super-2 number, since 2×447270785² = 400102310229032450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (447270787) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83261 + ... + 88469.

It is an arithmetic number, because the mean of its divisors is an integer number (36160005).

Almost surely, 2^447270785 is an apocalyptic number.

It is an amenable number.

447270785 is a deficient number, since it is larger than the sum of its proper divisors (131289295).

447270785 is a wasteful number, since it uses less digits than its factorization.

447270785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6548.

The product of its (nonzero) digits is 439040, while the sum is 44.

The square root of 447270785 is about 21148.7773878302. Note that the first 3 decimals coincide. The cubic root of 447270785 is about 764.7570874988.

It can be divided in two parts, 4472 and 70785, that added together give a palindrome (75257).

The spelling of 447270785 in words is "four hundred forty-seven million, two hundred seventy thousand, seven hundred eighty-five".