447764141 has 4 divisors (see below), whose sum is σ = 488469984. Its totient is φ = 407058300.

The previous prime is 447764111. The next prime is 447764143. The reversal of 447764141 is 141467744.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 447764141 - 2¹⁸ = 447501997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 447764095 and 447764104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447764143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20352905 + ... + 20352926.

It is an arithmetic number, because the mean of its divisors is an integer number (122117496).

Almost surely, 2^447764141 is an apocalyptic number.

It is an amenable number.

447764141 is a deficient number, since it is larger than the sum of its proper divisors (40705843).

447764141 is a wasteful number, since it uses less digits than its factorization.

447764141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40705842.

The product of its digits is 75264, while the sum is 38.

The square root of 447764141 is about 21160.4381098313. The cubic root of 447764141 is about 765.0381691693.

The spelling of 447764141 in words is "four hundred forty-seven million, seven hundred sixty-four thousand, one hundred forty-one".