447384121 has 8 divisors (see below), whose sum is σ = 473885640. Its totient is φ = 420903168.

The previous prime is 447384101. The next prime is 447384139. The reversal of 447384121 is 121483744.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 58308496 + 389075625 = 7636^2 + 19725^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-447384121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (447384101) 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, 81615 + ... + 86923.

It is an arithmetic number, because the mean of its divisors is an integer number (59235705).

Almost surely, 2^447384121 is an apocalyptic number.

It is an amenable number.

447384121 is a deficient number, since it is larger than the sum of its proper divisors (26501519).

447384121 is a wasteful number, since it uses less digits than its factorization.

447384121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10283.

The product of its digits is 21504, while the sum is 34.

The square root of 447384121 is about 21151.4567110637. The cubic root of 447384121 is about 764.8216771480.

The spelling of 447384121 in words is "four hundred forty-seven million, three hundred eighty-four thousand, one hundred twenty-one".