447949 has 4 divisors (see below), whose sum is σ = 450400. Its totient is φ = 445500.

The previous prime is 447943. The next prime is 447961. The reversal of 447949 is 949744.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-447949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447943) 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, 927 + ... + 1324.

It is an arithmetic number, because the mean of its divisors is an integer number (112600).

2⁴⁴⁷⁹⁴⁹ is an apocalyptic number.

It is an amenable number.

447949 is a deficient number, since it is larger than the sum of its proper divisors (2451).

447949 is a wasteful number, since it uses less digits than its factorization.

447949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2450.

The product of its digits is 36288, while the sum is 37.

The square root of 447949 is about 669.2899222310. The cubic root of 447949 is about 76.5143436444.

The spelling of 447949 in words is "four hundred forty-seven thousand, nine hundred forty-nine".