447803210761 has 3 divisors (see below), whose sum is σ = 447803879943. Its totient is φ = 447802541580.

The previous prime is 447803210759. The next prime is 447803210861. The reversal of 447803210761 is 167012308744.

The square root of 447803210761 is 669181.

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., 47493920761 + 400309290000 = 217931^2 + 632700^2 .

It is not a de Polignac number, because 447803210761 - 2¹ = 447803210759 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (447803210711) 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, 334591 + ... + 1003771.

It is an arithmetic number, because the mean of its divisors is an integer number (149267959981).

Almost surely, 2^447803210761 is an apocalyptic number.

447803210761 is the 669181-st square number.

447803210761 is the 334591-st centered octagonal number.

It is an amenable number.

447803210761 is a deficient number, since it is larger than the sum of its proper divisors (669182).

447803210761 is an frugal number, since it uses more digits than its factorization.

447803210761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1338362 (or 669181 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 43.

The spelling of 447803210761 in words is "four hundred forty-seven billion, eight hundred three million, two hundred ten thousand, seven hundred sixty-one".